If F = (10 s) N, where s is in meters, and the contact

Chapter 14, Problem F14-8

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QUESTION:

If F = (10 s) N, where s is in meters, and the contact surface between the block and the ground is smooth, determine the power of force F when s = 5 m. When s = 0, the 20-kg block is moving at v = 1 m/s.

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QUESTION:

If F = (10 s) N, where s is in meters, and the contact surface between the block and the ground is smooth, determine the power of force F when s = 5 m. When s = 0, the 20-kg block is moving at v = 1 m/s.

ANSWER:

Step 1 of 2

Calculate the force  

 

Substitute

 

Here frictional force is zero because the surface is smooth  .

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