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Three spheres, each of mass m, can slide...

Three spheres, each of mass `m`, can slide freely on a frictionless, horizontal surface. Spheres `A` and `B` are attached to an inextensible, inelastic cord of length `l` and are at rest in the position shown where sphere `B` is struck by sphere `C` which is moving to the right with a velocity `v_(0)`. Knowing that the cord is taut where sphere `B` is struck by sphere `C` and assuming 'head on' inelastic impact between `B` and `C`, we cannot conserve kinetic energy of the entire system.
The velocity of `B` immediately after collision is along unit vector

A

`hati`

B

`(hati+hatj)/(sqrt(2))`

C

`(sqrt(3))/(2)hati+(1)/(2)hatj`

D

Cant't predict

Text Solution

Verified by Experts

Hint : Use impulse-momentum theorem along the rope and conservation of momentum perpendicular to the rope.
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