Q2. Block A, with a mass of 10kg, rets on a 35° incline. The coefficient of static friction is 0.40. An attached string is parallel to the incline and passes over a massless, frictionless pulley at the top. The largest mass B (in kg), attached to the dangling end, for which mass A remains at rest is: 35° A. 5.9 В. 2.5 С. 4.2 D. 10.4

Q2. Block A, with a mass of 10kg, rets on a 35° incline. The coefficient of static friction is 0.40. An attached string is parallel to the incline and passes over a massless, frictionless pulley at the top. The largest mass B (in kg), attached to the dangling end, for which mass A remains at rest is: 35° A. 5.9 В. 2.5 С. 4.2 D. 10.4

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter7: Rotational Motion And Gravitation

Section: Chapter Questions

Problem 54AP: A 0.400-kg pendulum bob passes through the lowest part of its path at a speed of 3.00 m/s. (a) What...

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8. A block is at rest on a rough inclined plane and is connected to an object with the same mass as shown. The rope may be considered massless; and the pulley may be considered frictionless. The coeffi- cient of static friction between the block and the plane is us; and the coefficient of kinetic friction is k 0 A. g D. g - Hk sin(0) m a. What is the magnitude of the static frictional force acting on the block? B.m g [1 - sin(0)] C. mg D. mg cos(0) B. g - Hk cos(0) A. m g sin(0) E. mg [1 - cos(0)] b. If the rope were cut between the block and the pulley, what would be the magnitude of the acceleration of the block down the plane? C. g [sin(0) - μ cos(0)] sin(0)] c. If the mass of the suspended object is doubled, what will be the acceleration of the block up the plane? B. g [2 tan(0) - uk sin(0)] D. 2g [μ sin(0) - cos(0)] m E. g [tan (0) A. g [2 - μk sin(0)] C. g [2 cos(0) - μ sin(0)] E. g [2 sin(0) Hk Cos (0)]. -
7. Figure A shows a weight-and-rope system held in equilibrium be means of two fixed and frictionless pulleys. If W1 id 50 N, find the values of W2 and W3. In the equilibrium configuration in the figure A, using frictionless pulleys, find the maximum value of W2 if the can sustain a tension of 200 N before breaking. Figure A.
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A friction experiment is performed on a planet that has the same mass as Earth but half the radius. A 1.0-kg block is pulled along a horizontal dynamics track with a horizontal force of magnitude 15.0 N. If the coefficient of kinetic friction between the block and the track is 0.3, determine the acceleration of the block. O a. 14.26 m/s^2 O b. 12.06 m/s^2 O. 3.24 m/s^2 Od. 15.00 m/s^2
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8. The wheels fall off Beatrice's suitcase, so she ties a rope to it and drags it along the floor at the airport terminal. The rope makes a 40.0 degrees angle with the horizontal. The suitcase has a mass of 36.10kg and Beatrice pulls on a rope with a force of 65.10 N. What is the magnitude of normal force acting the on the suitcase due to the floor? a. 40.43N b. 311N c. 9.36N d. 312.30N e. 310.32N
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4. A block attains a velocity of 12 m/sec in a distance of 40 m starting from rest. Determine the coefficient of kinetic friction between the block and the floor. 250 N P 125 N 5. The car is given a leftward aceeleration of 2.500 m/sec The sum of the friction forces FA and Fs under the wheels is 50 N. Find the values of RA, Rs and P. CG P. 2.500m Im 2m 2m RA W-1,500N Ra
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