A ball gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of $10 m s^{- 2}$ , with what velocity will it strike the ground? After what time will it strike the ground?

10 m s^{- 1}, 2 s e c

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10 m s^{- 1}, 1 s e c

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20 m s^{- 1}, 2 s e c

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20 m s^{- 1}, 1 s e c

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Solution

The correct option is C $20 m s^{- 1}, 2 s e c$

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A ball gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of 10 ms−2, with what velocity will it strike the ground? After what time will it strike the ground?

The correct option is C 20 ms−1, 2 sec

A ball gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of $10 m s^{- 2}$ , with what velocity will it strike the ground? After what time will it strike the ground?

The correct option is C $20 m s^{- 1}, 2 s e c$