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A bob of mass 100 g tied at the end of a...

A bob of mass 100 g tied at the end of a string of length 50 cm is revolved in a vertical circle with a constant speed of `1 ms^(-1)`. When the tension in the string is 0.7 N, the angle made by the string with the vertical is `(g = 10 ms^(-2))`

A

`0^(@)`

B

`90^(@)`

C

`180^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
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