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A block is released from the top of a sm...

A block is released from the top of a smooth inclined plane of inclination `theta` as shown in figure. Let `upsilon` be the speed of the particle after travelling a distance s down the plane. Then which of the following will remain constant ?

A

`v^(2)+2gs sintheta`

B

`v^(2)-2gs sintheta`

C

`v- sqrt(2gs) sintheta`

D

`v+ sqrt(2gs) sintheta`

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The correct Answer is:
B
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