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A particle tied to string of length 0.5m...

A particle tied to string of length 0.5m is given a velocity 3 m/s at its bottom point while undergoing vertical circular motion. What will be its speed when it makes an angle of `60^0` with lower vertical

A

1.5 m/s

B

2.5 m/s

C

`2 sqrt(2)`

D

2 m/s

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