Answer: A block is given a brief push so that it slides up

Chapter 19, Problem 20Q

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QUESTION:

Problem 20Q

Problem

A block is given a brief push so that it slides up a ramp. After the block reaches its highest point, it slides back down, but the magnitude of its acceleration is less on the descent than on the ascent. Why?

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QUESTION:

Problem 20Q

Problem

A block is given a brief push so that it slides up a ramp. After the block reaches its highest point, it slides back down, but the magnitude of its acceleration is less on the descent than on the ascent. Why?

ANSWER:

Solution 20Q: There is difference in the magnitude of acceleration during descent and ascent motion due to frictional forces which changes its direction depending upon the direction of motion. Step 1 of 4 Concept: Frictional force also acts on the surface of the bodies in contact whenever their is relative motion between between the two bodies.

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