A body of mass 10kg is at height of 10m ...

A body of mass 10kg is at height of 10m at point A as shown on a smooth track. Find speed at B.

5 m/s

`sqrt(20) m/s`

10 m/s

20 m/s

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JEE MAINS PREVIOUS YEAR-JEE MAIN 2021-PHYSICS SECTION B

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