From the top of a tower of height `200 m`, a ball `A` is projected up with `10 m s^(-1)`. And `2 s` later another ball `B` is projected verticall down with the same speed. Then .A. Both `A` and `B` will reach the ground simultaneouslyB. Ball `A` will hit the ground `2 s` later than B hitting the ground.C. Both the balls will ground with same velocity.D. Both the balls will hit the ground with different velocity.

From the top of a tower of height `200 m`, a ball `A` is projected up

1.	From the top of a tower of height `200 m`, a ball `A` is projected up with `10 m s^(-1)`. And `2 s` later another ball `B` is projected verticall down with the same speed. Then .A. Both `A` and `B` will reach the ground simultaneouslyB. Ball `A` will hit the ground `2 s` later than B hitting the ground.C. Both the balls will ground with same velocity.D. Both the balls will hit the ground with different velocity.
Answer» Correct Answer - A::C Ball `A` will return to the top of tower after with speed of `10 m s^(-1)` downwards . And this time, `B` also projected downwards with `10 m s^(-10)`. So both reach ground simultaneously. Also they will hit the ground with the same speed.

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