A particle is moving on circle of radius 5m. A force of constant magnitude 10 N is acting on particle along tangent find work done by this force when particle will complete one circle.
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a
100 π J
b
200πJ
c
300πJ
d
zero
answer is A.
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Detailed Solution
force is varying its direction as it is along the tangent so here work done will be ∑F.dr =F.2πr=10 (5)(2 π)