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Two balls are fired form ground level,a ...

Two balls are fired form ground level,`a` distance `d` apart. The right one is fired vertically with speed `v`. You wish to simultancously fire the left one at appropriate velocity `u` so that collides with the right ball when they reach their highest point. Value of horizontal `(u_(x))` and vertical `(u_(y))`components of `u` are respectively`:-`
.

A

`(dg)/(2v),2v`

B

`v,(dg)/(2v)`

C

`(dg)/(v),v`

D

`v,(d)/(v)g`

Text Solution

Verified by Experts

The correct Answer is:
C

`u_(y)=v`
`rArru sintheta=v`
also `u_(x)t=d`
`rArr u_(x)(v//g)=d`
`rArru_(x)=dg//v`
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