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A body of weight 10 N attached to one en...

A body of weight 10 N attached to one end of a string of length 1m is rotated in a vertical plane. At the instant when the string makes an angle of `60^(@)` with the downward vertical the speed of the bob is `sqrt(9.8) ms^(-1)`. The tension in the string at that instant is equal to

A

10 N

B

15 N

C

20 N

D

25 N

Text Solution

Verified by Experts

The correct Answer is:
B
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