A particle in SHM moves from to

PHYSICS · Single correct · CBSE · Physics · Oscillations · Oscillations

Problem

A particle in SHM moves from x=+3 cmx=+3\,\text{cm} to x=+1 cmx=+1\,\text{cm}. What are the signs of (i) work done by the restoring force and (ii) change in potential energy during this motion? (a) Work −-,   ΔU  +\;\Delta U\;+ (b) Work ++,   ΔU  +\;\Delta U\;+ (c) Work ++,   ΔU  −\;\Delta U\;- (d) Work −-,   ΔU  −\;\Delta U\;-

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