A) Zero
B) \[\frac{m{{v}^{2}}}{{{r}^{2}}}\]
C) \[\frac{m{{v}^{2}}}{r}\times \pi r\]
D) \[\frac{\pi {{r}^{2}}}{m{{v}^{2}}}\]
Correct Answer: A
Solution :
Work done by centripetal force is always zero. As the force is acting towards the centre so, the work done by this force in moving the body over half the circumference of the circle is zero.You need to login to perform this action.
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