A ball is thrown vertically downwards from a height of 20 m with an initial velocity υ0. It collides with the ground, loses 50 percent of its energy in collision and rebounds to the same height. The initial velocity υ0 is (Take g=10ms−2)

A ball is thrown vertically downwards from a height of 20 m with an in

1.	A ball is thrown vertically downwards from a height of 20 m with an initial velocity υ0. It collides with the ground, loses 50 percent of its energy in collision and rebounds to the same height. The initial velocity υ0 is (Take g=10ms−2)
Answer» A ball is thrown vertically downwards from a height of $20 m$ with an initial velocity $υ_{0}$ . It collides with the ground, loses $50$ percent of its energy in collision and rebounds to the same height. The initial velocity $υ_{0}$ is (Take $g = 10 m s^{- 2}$ )

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A ball is thrown vertically downwards from a height of 20 m with an initial velocity υ0. It collides with the ground, loses 50 percent of its energy in collision and rebounds to the same height. The initial velocity υ0 is (Take g=10ms−2)

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