Problem Set - Physics

Bicycles - AyosDito.ph ayosdito.ph/Bicycle Check Out Big Savings On Bikes Or Sell What You Don't Use! (/) (/ReadWatchInteract) (/PracticeReviewTest) (/TeacherTools) cfm) Show Answer 2.42 x 103 J Problem 3: Lamar Gant. Determine the work done on the car. Misfortune occurs and Renatta and her friends find themselves getting a workout.9 Newtons at an angle of 35 degrees above the horizontal to drag his backpack a horizontal distance of 129 meters to the right. Energy and Power: Problem Set Problem 1: Renatta Gass is out with her friends. Determine the work done by Jerome in climbing the stair case. elevating his 102 kg body a vertical distance of 2. Determine the work (in Joules) done upon the backpack.cfm) Show Answer 2. Audio Guided Solution(/calcpad/energy/prob3. Determine the total work done on the squirrel while moving upward (32 times).The Physics Classroom(/) » The Calculator Pad(/calcpad) Mechanics: Work.32 seconds at a constant speed. powerlifting star.cfm) . J Problem 6: During the Powerhouse lab.cfm) Show Answer 10. displacing its center of mass by a distance of 8.6 x 103 J Problem 4: Sheila has just arrived at the airport and is dragging her suitcase to the luggage check-in desk. They apply a cumulative force of 1080 N to push the car 218 m to the nearest fuel station. Audio Guided Solution(/calcpad/energy/prob4. Determine the work done by Sheila on the suitcase. Audio Guided Solution(/calcpad/energy/prob6.S. Energy and Power Overview(/calcpad/energy) | Problem Set(/calcpad/energy/problems) | Audio Guided Solutions(/calcpad/energy/audio) Work. Determine the work done by Lamar in deadlifting 300 kg to a height of 0.35 x 105 J Problem 2: Hans Full is pulling on a rope to drag his backpack to school across the ice.5 cm for each pushup. Deadlifting involves raising a loaded barbell from the floor to a position above the head with outstretched arms.cfm) Show Answer 7. Audio Guided Solution(/calcpad/energy/prob2.cfm) Show Answer 2. Determine the power generated by Jerome.29 meters in a time of 1. a 380 gram male squirrel does 32 pushups in a minute. Audio Guided Solution(/calcpad/energy/prob1.0 x 103 J Problem 5: While training for breeding season. became the first man to deadlift five times his own body weight in 1985. Jerome runs up the stairs. Audio Guided Solution(/calcpad/energy/prob5.90 m above the ground. He pulls upwards and rightwards with a force of 22. a. b. She pulls on the strap with a force of 190 N at an angle of 35° to the horizontal to displace it 45 m to the desk. U. Audio Guided Solution(/calcpad/energy/prob8.0 x 103 N c. The combined mass of the passengers and cabin is 1250 kg.5 x 103 N b. … twice the mass and was moving at the same speed? b. 8. Determine the power delivered by the motor to lift the 10 passengers at this speed. Suppose that 18 skiers with an average mass of 48 kg hold onto the rope and suppose that the motor operates at full power. What kinetic energy would the bicycle have if it had … a. … one-half the mass and was moving with twice the speed? d.0 x 1021 kg and an orbital speed of 17900 m/s. It is the largest and most massive asteroid is our solar system’s asteroid belt.73 x 103 W Problem 7: A new conveyor system at the local packaging plan will utilize a motor-powered mechanical arm to exert an average force of 890 N to push large crates a distance of 12 meters in 22 seconds.cfm) Show Answer 490 W (rounded from 485 W) Problem 8: The Taipei 101 in Taiwan is a 1667-foot tall. 2. having an estimated mass of 3.cfm) Show Answer a. Audio Guided Solution(/calcpad/energy/prob10. 2.cfm) Show Answer 4. Determine the force required to pull this amount of weight up a 14° incline at a constant speed.cfm) . b. Audio Guided Solution(/calcpad/energy/prob7.8 x 1029 J Problem 11: A bicycle has a kinetic energy of 124 J. Determine the amount of kinetic energy possessed by Ceres. 11 m/s Problem 10: The first asteroid to be discovered is Ceres.06 x 105 W Problem 9: The ski slopes at Bluebird Mountain make use of tow ropes to transport snowboarders and skiers to the summit of the hill.8 m/s. One of the tow ropes is powered by a 22-kW motor which pulls skiers along an icy incline of 14° at a constant speed. Determine the cumulative weight of all these skiers. Determine the speed at which the skiers will ascend the hill.cfm) Show Answer 2. … the same mass and was moving with twice the speed? c. The elevators transport visitors from the ground floor to the Observation Deck on the 89th floor at speeds up to 16. Audio Guided Solution(/calcpad/energy/prob9. 101-story skyscraper. a.Show Answer a.30 x 103 J b. The skyscraper is the home of the world’s fastest elevator. c. 1. Determine the power output required of such a motor. … the same mass and was moving with one-half the speed? e. … three times the mass and was moving with one-half the speed? Audio Guided Solution(/calcpad/energy/prob11. 2 J Problem 15: Olive Udadi is at the park with her father.4 m/s at a height of 44.2 m above the ground). Assume negligible air resistance throughout the motion. the ball was 28. Olive projects from the seat and travels as a projectile along the path shown. 248 J b. At point F. Determine the kinetic energy possessed by the skydiver. At position C (2.6 meters above the ground. Use this information to fill in the table. b.2 m above the ground.cfm) Show Answer a. 6.2 C 2. 1. Chloe slugged the 181gram softball so hard that it cleared the outfield fence and landed on Lake Avenue. Determine the total mechanical energy of the softball. Olive has a speed of 0 m/s at position A and is a height of 3. 31. The 26-kg Olive is on a swing following the path as shown. Olive is a mere picometer above the ground.2 F 0 Audio Guided Solution(/calcpad/energy/prob15. Position Height (m) PE (J) A 3.0 . 248 J d. has a mass of 59.1 x 105 J Problem 13: Li Ping Phar. In a game against New Greer Academy this past weekend.0 J Problem 12: A 78-kg skydiver has a speed of 62 m/s at an altitude of 870 m above the ground. Audio Guided Solution(/calcpad/energy/prob14.5 x 105 J b.24 x 104 J Problem 14: Chloe leads South’s varsity softball team in hitting.0 B 1. c.7 x 105 J c.8 m above the ground and moving with a speed of 19. Audio Guided Solution(/calcpad/energy/prob12.7 m/s. 93.cfm) Show Answer 86. 8. Audio Guided Solution(/calcpad/energy/prob13.6 kg.cfm) Show Answer 4. He is moving with a speed of 23. Olive is 1. a. Determine the total mechanical energy possessed by the skydiver.0-m above the ground. 496 J c. At one point in its trajectory.cfm) KE (J) TME (J) Speed (m/s) 0. Determine the potential energy possessed by the skydiver.0 J e.Show Answer a. the esteemed Chinese ski jumper. Determine the total mechanical energy of Li Ping Phar. At position B. 0 J c. 2.cfm) Show Answer a. b.2 x 103 J b. d. 3. c.6 x 104 J e. c. a. Assuming negligible losses of energy between the top of the slide and his approach to the bottom of the slide (h=0 m). 7.Show Answer Position Height (m) PE (J) KE (J) TME (J) A B C F 3. If no energy is lost or gained between the top of the hill and her initial arrival at the end of the run.cfm) .6 m/s Problem 18: Ima Scaarred (m=56. Determine Ima's kinetic energy at the top of the loop. At the top of the slide. 2.8 m/s at the top of a 19.cfm) Show Answer a.0 x 104 J c. Determine Nicholas' kinetic energy as he arrives at the bottom of the slide.03 x 104 J d. Determine Nicholas's kinetic energy at the top of the slide.5-m high roller coaster loop.02 x 104 J b.0 5. d.2 kg) is traveling at a speed of 12. 2. 0 J e. Audio Guided Solution(/calcpad/energy/prob17.5 m above the ground. f.6 kg) is 28. d. 23. Determine Nicholas' potential energy at the top of the slide. Determine Suzie's kinetic energy.6 x 104 J d. e.0 x 101 m/s Problem 17: Nicholas is at The Noah's Ark Amusement Park and preparing to ride on The Point of No Return racing slide. determine Ima's total mechanical energy at the bottom of the loop (h=0 m).0 7. Determine Suzie's total mechanical energy at the crest of the hill. then what will be Suzie's total mechanical energy at the end of the run? e. Determine Suzie's speed as she arrives at the end of the run and prior to braking to a stop. Determine Nicholas' speed as he arrives at the bottom of the slide.7 Problem 16: Suzie Lavtaski (m=56 kg) is skiing at Bluebird Mountain. determine Nicholas's total mechanical energy as he arrives at the bottom of the slide. Determine Nicholas' potential energy as he arrives at the bottom of the slide. a. She is moving at 16 m/s across the crest of a ski hill located 34 m above ground level at the end of the run.2 0 760 310 560 0 0 460 200 760 760 760 760 760 Speed (m/s) 0. 2. Determine Ima's potential energy at the top of the loop. Audio Guided Solution(/calcpad/energy/prob16. Assuming negligible losses of energy due to friction and air resistance.0 1. Determine Ima's speed at the bottom of the loop.03 x 104 J f. b.9 4. 1. 2.2 2. c. a. b. Determine Suzie's potential energy relative to the height of the ground at the end of the run. Audio Guided Solution(/calcpad/energy/prob18. Nicholas (m=72. The 3. completely vertical section of the track. e. (GIVEN: 1. a.8 J d. c.2 J b. 1. 4. Determine the kinetic energy of the Camaro after slowing down.28 ft) d. -5. The coefficient of friction between the pitcher and the counter top is 0. Determine the initial kinetic energy of the Camaro. Determine the speed of the pitcher when Pete is done pushing it. a.8 m/s in his 1510-kg 1992 Camaro. d. a. What is Jerome's kinetic energy before the acceleration period? b. He fills a pitcher full of Cola.8 N forward push over a distance of 48 cm to send it to a customer at the end of the counter.cfm) Show Answer a.8 m/s Problem 21: The Top Thrill Dragster stratacoaster at Cedar Point Amusement Park in Ohio uses a hydraulic launching system to accelerate riders from 0 to 53.Show Answer a. Audio Guided Solution(/calcpad/energy/prob19. He boards his car.8 J e.28. Determine Jerome's kinetic energy at the top of the vertical section. 0. Once the launch is over.60 x 103 J b. 0. Determine the kinetic energy of the pitcher when Pete is done pushing it. e. Determine the work done by Pete on the pitcher during the 48 cm push.07 x 104 J c. straps himself in and prepares for the thrill of the day. 3. 1.07 x 105 J Problem 20: Pete Zaria works on weekends at Barnaby's Pizza Parlor. Determine the amount of work done on the Camaro during the deceleration.4 m/s Problem 19: Justin Thyme is traveling down Lake Avenue at 32. 8. places it on the counter top and gives the 2.cfm) Show Answer a. c.8 seconds before climbing a completely vertical 420-foot hill.12 x 105 J b. 4. Determine Jerome's speed at the top of the vertical section. Determine the work done by friction upon the pitcher .4 J c.00 m = 3. 23.8-second acceleration period begins to accelerate Jerome along the level track. Determine the total work done upon the pitcher . Determine Jerome's potential energy at the top of the vertical section.6 m/s (120 mi/hr) in 3. Jerome (m=102 kg) visits the park with his church youth group.53 x 104 J d. He spots a police car with a radar gun and quickly slows down to a legal speed of 20. -3. What is Jerome's kinetic energy at the end of this acceleration period? c. Jerome begins screaming up the 420-foot.1 m/s. His primary responsibility is to fill drink orders for customers.cfm) . b. b. Audio Guided Solution(/calcpad/energy/prob20. 0.05 x 105 J c. Audio Guided Solution(/calcpad/energy/prob21.6-kg pitcher a 8. Vinko Bogataj was the Yugoslavian entrant into the World Championships held in former West Germany. partners Anna Litical and Noah Formula give a 1. Determine the kinetic energy of the ball before Paige spikes it. doing 9.cfm) Show Answer a.9 mi/hr (45.47 x 105 J c. 19 m/s Problem 22: Paige is the tallest player on South's Varsity volleyball team. After descending the 49 m.07 J b.29 m above the ground and has a speed of 1. Vinko tumbled off the track and descended another 15 m down the ski hill before finally stopping.00-kg cart an initial speed of 2.340 m above the lab table. Audio Guided Solution(/calcpad/energy/prob23.0 m/s) If such a pitch had been directed vertically upwards at this same speed. Determine the change in potential energy of Vinko from the top of the hill to the point at which he stops. clocked at 100. Audio Guided Solution(/calcpad/energy/prob25.cfm) Show Answer 103 m Problem 25: In the Incline Energy lab.35 m/s from a height of 0. Midway through the run. Bogataj recognized the danger and attempted to make adjustments in order to terminate his jump.5 x 104 J c.127 J c. Audio Guided Solution(/calcpad/energy/prob22. -4. The 0. d. For nearly 30 years thereafter. heavy and persistent snow produced dangerous conditions along the slope. By his third and final jump of the day. 1. 5. e. 31 m/s b. 1.cfm) Show Answer a. 0 J b.20 J d. Determine the total mechanical energy of the ball upon hitting the floor on the opponent's side of the net.226kg volleyball is 2. 15. footage of the event was included in the introduction of ABC's infamous sports show and Vinco has become known as the agony of defeat icon. She is in spiking position when Julia gives her the perfect set. b. Determine the potential energy of the ball before Paige spikes it. there is the thrill of victory and the agony of defeat.5 x 104 J Problem 24: Nolan Ryan reportedly had the fastest pitch in baseball.Show Answer a. c.28 x 105 J d.6 m/s Problem 23: According to ABC's Wide World of Sports show.9 x 104 J e. 1. a. Determine the amount of cumulative work done upon Vinko's body as he crashes to a halt. Paige spikes the ball. 11.06 m/s. Instead. Determine the speed of the cart when it is located 0. 5.cfm) . c.89 J of work on it. 0. Determine the total mechanical energy of the ball before Paige spikes it.125 m above the lab table.09 J e. Determine the speed of the ball upon hitting the floor on the opponent's side of the net. then to what height would it have traveled? Audio Guided Solution(/calcpad/energy/prob24. Determine the speed of 72-kg Vinco after skiing down the hill to a height which is 49 m below the starting location. a. b. -4. he lost his balanced and tumbled and flipped off the slope into the dense crowd. On March 21 of 1970. 7 m/s and that it lost 10% of its original energy on its flight through the air. Audio Guided Solution(/calcpad/energy/prob26. She approaches a long embankment inclined upward at 16° above the horizontal.128. Audio Guided Solution(/calcpad/energy/prob27.6 m.9 m/s Problem 31: Sheila (m=56.cfm) Show Answer 5. Audio Guided Solution(/calcpad/energy/prob31.cfm) Show Answer 85. A braking system abruptly brings the 328-kg car (rider mass included) to a speed of 2.9 m/s.8-m long chain back to make a 26° angle with the vertical and lets 14-kg Allison (swing mass included) go.41 x 103 N Problem 30: Gwen is baby-sitting for the Parker family. The coefficient of friction between the pond and the toboggan is 0. He leaves the springboard from a height of 3.1 m/s Problem 26: In April of 1976.Show Answer 1. such that it acquires a speed of 1.00 m above the water surface with a speed of 5. Determine the braking force applied to Dizzy's car.cfm) Show Answer 1. Audio Guided Solution(/calcpad/energy/prob30.9 m/s over a distance of 5.51 x 104 N Problem 28: A 6.cfm) Show Answer 1. Determine the speed of the ball when it cleared the stadium wall at a height of 25.60 m .70 m/s b. Gwen pulls the 1.13. determine Allison's speed at the lowest point in the trajectory. 9.8-kg toboggan is kicked on a frozen pond.55 meters. Chicago Cub slugger Dave Kingman hit a home run which cleared the Wrigley Field fence and hit a house located 530 feet (162 m) from home plate. Determine the distance which the toboggan slides before coming to rest. Determine the height to which she will travel before coming to rest.6 m/s at the bottom of the sledding hill near Bluebird Lake. She takes 3-year old Allison to the neighborhood park and places her in the seat of the children's swing.0 m/s Problem 27: Dizzy is speeding along at 22.cfm) Show Answer a.8 m/s as she approaches the level section of track near the loading dock of the Whizzer roller coaster ride. Suppose that the 0. As she slides up the embankment.8 kg) is in her saucer sled moving at 12.cfm) Show Answer 1. 2.0 kg) is competing in the state diving championship.145-kg baseball left Kingman's bat at 92. Audio Guided Solution(/calcpad/energy/prob28.4 m Problem 29: Connor (m=76. Audio Guided Solution(/calcpad/energy/prob29. she encounters a coefficient of friction of 0.94 m/s in the upward direction. Assuming negligible friction and air resistance. 128 for both the hill and the plateau. Audio Guided Solution(/calcpad/energy/prob32.cfm) Show Answer 52. All rights reserved. Determine the distance which Matthew will slide along the level surface before coming to a complete stop. The coefficient of friction between the sled and snow is 0. He slides down the 32-degree incline and across the plateau at its base.Problem 32: Matthew starts from rest on top of 8.5 kg. . Matthew and the sled have a combined mass of 27.5 m Return to Overview(/calcpad/energy/) View Audio Guided Solution for Problem: 1(/calcpad/energy/prob1) | 2(/calcpad/energy/prob2) | 3(/calcpad/energy/prob3) | 4(/calcpad/energy/prob4) | 5(/calcpad/energy/prob5) | 6(/calcpad/energy/prob6) | 7(/calcpad/energy/prob7) | 8(/calcpad/energy/prob8) | 9(/calcpad/energy/prob9) | 10(/calcpad/energy/prob10) | 11(/calcpad/energy/prob11) | 12(/calcpad/energy/prob12) | 13(/calcpad/energy/prob13) | 14(/calcpad/energy/prob14) | 15(/calcpad/energy/prob15) | 16(/calcpad/energy/prob16) | 17(/calcpad/energy/prob17) | 18(/calcpad/energy/prob18) | 19(/calcpad/energy/prob19) | 20(/calcpad/energy/prob20) | 21(/calcpad/energy/prob21) | 22(/calcpad/energy/prob22) | 23(/calcpad/energy/prob23) | 24(/calcpad/energy/prob24) | 25(/calcpad/energy/prob25) | 26(/calcpad/energy/prob26) | 27(/calcpad/energy/prob27) | 28(/calcpad/energy/prob28) | 29(/calcpad/energy/prob29) | 30(/calcpad/energy/prob30) | 31(/calcpad/energy/prob31) | 32(/calcpad/energy/prob32) Share 26 home(/) about(/about) © 1996-2014 The Physics Classroom.45 m high sledding hill.