54. || A large box of mass M is moving on a horizontal surface speed vo. A small box of mass m sits on top of the large box. T coefficients of static and kinetic friction between the two boxes a M, and uk, respectively. Find an expression for the shortest distan dmin in which the large box can stop without the small box slippir 55. Il You're driving along at 25 m/s with your aunt's valuable a tiques in the back of your pickup truck when suddenly you see giant hole in the road 55 m ahead of you. Fortunately, your foot right beside the brake and your reaction time is zero! a. Can you stop the truck before it falls into the hole? b. If your answer to part a is yes, can you stop without t antiques sliding and being damaged? Their coefficients friction are M. = 0.60 and u = 0.30. Hint: You're not trying to stop in the shortest possible distan What's your best strategy for avoiding damage to the antiques? 56. || The 2.0 kg wood box in FIGURE P6.56 slides down a vertical wo 45° angle. What magnitude of for

54. || A large box of mass M is moving on a horizontal surface speed vo. A small box of mass m sits on top of the large box. T coefficients of static and kinetic friction between the two boxes a M, and uk, respectively. Find an expression for the shortest distan dmin in which the large box can stop without the small box slippir 55. Il You're driving along at 25 m/s with your aunt's valuable a tiques in the back of your pickup truck when suddenly you see giant hole in the road 55 m ahead of you. Fortunately, your foot right beside the brake and your reaction time is zero! a. Can you stop the truck before it falls into the hole? b. If your answer to part a is yes, can you stop without t antiques sliding and being damaged? Their coefficients friction are M. = 0.60 and u = 0.30. Hint: You're not trying to stop in the shortest possible distan What's your best strategy for avoiding damage to the antiques? 56. || The 2.0 kg wood box in FIGURE P6.56 slides down a vertical wo 45° angle. What magnitude of for

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter6: Applications Of Newton's Laws

Section: Chapter Questions

Problem 37P: An elevator filled with passengers has a mass of 1.70103kg . (a) The elevator accelerates upward...

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moodle.nct.eduom/mod/qi -Learning Portal Courses - Reports - e-Services- Academic Departments - ETC - CIMS - A 17kg crate resting on a horizontal surface is pushed as shown. If the coefficient of static friction u, between the surfaces is 0.24, what is the minimum force (F) required to start the motion? O a 4.08N O b. 70.83N Oc 39.98N Od. 694.17N Windows buut An object of mass Skg is sliding with a constant velocity of 10m/s on a frcitionless horizontal table. The force needed to keep the object moving with the same velocity is. 144 4- # 4. 6. V.
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|| It's a snowy day and you're pulling a friend along a level road on a sled. You've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. You've been walking at a steady 1.5 m/s, and the rope pulls up on the sled at a 30° angle. You estimate that the mass of the sled, with your friend on it, is 60 kg and that you're pulling with a force of 75 N. What answer will you give?
Help! A tiger accelerates down a hill that has an inclined of 25 degrees to horizontal at 2.00m/s2. What is the coefficient of kinetic friction between the tiger and the hill?
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