Question

two conditions when no work is done by aforce

Answer 1

Answer:

two conditions where no work done is

boy pushing wall

a boy walking

Answer 2

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Two Conditions When the Work Done On the object Is Zero are:

• When the Angle Of the Force and Displacement vector has an Angle 90°

W=F.∆Scos90°

here cos90°=0

so work done Will be Zero

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• When the object has Travelled Distance and Returns to the initial Point,there displacement will be zero.

So the Work done On the object will be Zero.