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From the top of a tower of height 200 m,...

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 simultaneously

B

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.

Text Solution

Verified by Experts

The correct Answer is:
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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