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A 5 kg is rotated in a vertical circle w...

A 5 kg is rotated in a vertical circle with a constant speed of `4ms^(-1)` using a sting of length 1m, when the tension in the string is 31N, then the body will be

A

at the lowest point

B

making a angle `30^(@)` with vertical

C

at the highest point

D

at horizontal position

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