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A is a fixed point at height H above a p...

A is a fixed point at height H above a perfectly inelastic smooth horizontal plane. A light inextesnsible string of length `L(gtH)` has one end attached to A and other to a heavy particle. The particle is held at the level of A with string just taut and released from rest. Find the height of the particle above the plane when it is next instaneously at rest .

A

velocity of particle on the surface is `=sqrt(2gh) cos theta`

B

velocity of particle when it leaves surface `=sqrt(2gh) cos^(2) theta`

C

`S=(h^(5))/(l^(4))`

D

None of these

Text Solution

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The correct Answer is:
D
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