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A 4.00-kg block is set into motion up an inclined plane with an initial speed of v, = 8.20 m/s (see figure below). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of 0 = 30.0° to the horizontal. (a) For this motion, determine the change in the block's kinetic energy. |-183 We know an initial speed and a final speed. Are the other pieces of information relevant to this question? J 1x (b) For this motion, determine the change in potential energy of the block-Earth system. 76.4 If the block moves a distance 3.00 up the ramp, what is the change in height? ) (c) Determine the friction force exerted on the block (assumed to be constant). 35.7 You appear to have correctly calculated the force using your incorrect results from parts (a) and (b). N

A 4.00-kg block is set into motion up an inclined plane with an initial speed of v, = 8.20 m/s (see figure below). The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of 0 = 30.0° to the horizontal. (a) For this motion, determine the change in the block's kinetic energy. |-183 We know an initial speed and a final speed. Are the other pieces of information relevant to this question? J 1x (b) For this motion, determine the change in potential energy of the block-Earth system. 76.4 If the block moves a distance 3.00 up the ramp, what is the change in height? ) (c) Determine the friction force exerted on the block (assumed to be constant). 35.7 You appear to have correctly calculated the force using your incorrect results from parts (a) and (b). N

Principles of Physics: A Calculus-Based Text
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter7: Conservation Of Energy
Section: Chapter Questions
Problem 21P: A 5.00-kg block is set into motion up an inclined plane with an initial speed of i = 8.00 m/s (Fig....
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A 4.00-kg block is set into motion up an inclined plane with an initial speed of v, = 8.20 m/s (see figure below). The block comes to rest after travelingd = 3.00 m along the plane, which is inclined at an angle of 0 = 30.0° to the horizontal. (a) For this motion, determine the change in the block's kinetic energy. -183 We know an initial speed and a final speed. Are the other pieces of information relevant to this question? ) (b) For this motion, determine the change in potential energy of the block-Earth system. 76.4 If the block moves a distance 3.00 up the ramp, what is the change in height? ) (c) Determine the friction force exerted on the block (assumed to be constant). 35.7 You appear to have correctly calculated the force using your incorrect results from parts (a) and (b). N (d) What is the coefficient of kinetic friction? .81 If you know the magnitude of the friction force (part (c)), how can you determine the coefficient of kinetic friction?
Transcribed Image Text:A 4.00-kg block is set into motion up an inclined plane with an initial speed of v, = 8.20 m/s (see figure below). The block comes to rest after travelingd = 3.00 m along the plane, which is inclined at an angle of 0 = 30.0° to the horizontal. (a) For this motion, determine the change in the block's kinetic energy. -183 We know an initial speed and a final speed. Are the other pieces of information relevant to this question? ) (b) For this motion, determine the change in potential energy of the block-Earth system. 76.4 If the block moves a distance 3.00 up the ramp, what is the change in height? ) (c) Determine the friction force exerted on the block (assumed to be constant). 35.7 You appear to have correctly calculated the force using your incorrect results from parts (a) and (b). N (d) What is the coefficient of kinetic friction? .81 If you know the magnitude of the friction force (part (c)), how can you determine the coefficient of kinetic friction?
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