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A particle is projected at an angle 60^@...

A particle is projected at an angle `60^@` with speed `10(sqrt3)m//s`, from the point A, as shown in the figure. At the same time the wedge is made to move with speed `10 (sqrt3) m//s` towards right as shown in the figure. Then the time after which particle will strike with wedge is

A

`2s`

B

`2sqrt3s`

C

`4/sqrt3s`

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
In the frame of wedge the particle appears to be projected up the plane as shown in figure.
Its time of flight is `(2U sin theta)/(g cos alpha)=2s`
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