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A boy projects a stone vertically perpen...

A boy projects a stone vertically perpendicular to the trolley car with a speed v. If the trolley car moves with a constant velocity u, the time of flight of the stone is :

A

`(u+v)/g`

B

`(2v)/g`

C

`(2u)/g`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
B
`v_(0)sin theta=v.......(i)`
`v_(0)sin theta=u.......(ii)`

Time of flight depends on vertical component of velocity.
`T=(2v_(0)sin theta)/g=(2v)/g`
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