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General
Easy
Question
A bob of mass m is attached at one end of a string of length l. Other end of the string is fixed point O. Bob is rotating in a circular path of radius l in horizontal plane about O with constant speed v, as shown in the figure. The average force exerted by string on the bob during its
- half revolution will be
- half revolution will be
- one fourth revolution will be
- one revolution will be zero
The correct answer is: half revolution will be
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