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A horizontal frictionless rod is threade...

A horizontal frictionless rod is threaded through a bead of mass `m`. The length of the cart is `L` and the radius of the bead, `r`, is very small in comparison with `L(r lt lt L)`. Initially at (`t = 0`) the bead is at the right edge of the cart. The can is struck and as a result, it moves with velocity `v_(0)` towards right. When the bead collides with the cart's walls, the collisions are always completely elastic.

Velocity of bead just after the first collision is

A

`(2Mv_(0))/(m+M)`

B

`(2mv_(0))/(m+M)`

C

`(mv_(0))/(m+M)`

D

`(Mv_(0))/(m+M)`

Text Solution

Verified by Experts

The correct Answer is:
D
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