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A small spherical ball is suspended thro...

A small spherical ball is suspended through a string of length `l` . The whole arrangement is placed in a vehicle which is moving with velocity `v` . Now, suddenly the vehicle stops and ball starts moving along a circular path. If tension in the string at the highest point is twice the weight of the ball then (assume that the ball completes the vertical circle)

A

`v=sqrt(5gl)`

B

`v=sqrt(7gl)`

C

Velocity of the ball at highest point is `sqrt(gl)`

D

Velocity of the ball at highest point is `sqrt(3gl)`

Text Solution

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The correct Answer is:
B, D
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