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A very broad elevator is going up vertic...

A very broad elevator is going up vertically with a constant acceleration of `2m//s^(2)`. At the instant when its velocity is `4m//s`, a ball is projected from the floor of the lift wht as of `4m//s` relative to the floor at an elevation of `30^(@)`. The time taken by the ball to return the floor is `(g=10m//s^(2))`

A

`1/2s`

B

`1/3s`

C

`1/4s`

D

`1s`

Text Solution

Verified by Experts

The correct Answer is:
B
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