Posted by **Anonymous** on Tuesday, April 30, 2013 at 11:27pm.

A boy is riding a skateboard. Why does the skateboard have the ability to do work?

Answer

A.

because it can slow down

B.

because it can change direction

C.

because the force applied by the rider acts in the same direction as the motion of the skateboard

D.

because the force applied by the rider acts in the opposite direction as the motion of the skateboard

My answer is D.

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