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A particle is projected horizontally fro...

A particle is projected horizontally from a tower with velocity u towards east. Wind provides constant horizontal acceleration `(g)/(2)` towards west. If particle strikes the ground vertically the then :

A

Height of toward is `(2u^(2))/(g)`

B

The speed with which particle strikes ground is `2u`

C

Work done by wind force `(1)/(2)mu^(2)`

D

Particle3 strikes the ground after time `t = 2u//g`

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
A particle …………..

in horizontal direction
`0=u-g//2t`
`t = 2u//g`
in vertical direction
`v = u+at`
`v=0+g. (2u)/(g)=2u`
`h=0+(1)/(2)g((2u)/(g))^(2) = (2u^(2))/(g)`
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