A) the net displacement is zero
B) the force is not real
C) the force is zero
D) the force is perpendicular to the displacement at every instant
Correct Answer: D
Solution :
Student who consider \[W=F\times \]displacement will mark option [A]. Correct option is [D]. Note that in a uniform circular motion the centripetal force is along the radius whereas the displacement is along a tangent to the circular path. Since the force and the displacement are perpendicular to each other at every instant the work done is zero.You need to login to perform this action.
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