A sphere is suspended by a thread of len...

A sphere is suspended by a thread of length l. What minimum horizontal velocity has to be imparted the ball for it to reach the height of the suspension?

2 gl

`sqrtgl`

`sqrt(2gl)`

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Verified by Experts

The correct Answer is:

KE given ot a sphere at lowest point = potential energy at the height of suspension
`1/2mv^(2)=mgl`
`thereforev=sqrt(2gl)`

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