1.

Potential energy is stored in the body if some work is done on it. Work done is best given by:

A. dU = Fdrcosθ
B. dU = Fdrsinθ
C. dU = Fdrcotθ
D. dU = Fdrdθ
Answer» B. dU = Fdrsin‚âà√≠‚Äö√†√®


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