A ball of mass m moving with a speed u(0...

A ball of mass m moving with a speed `u_(0)` collides elastically with a rod of mass M suspended in the vertical plane by the hinge O. The rod is free to rotate in the vertical plane. Before and after the collision.

Linear momentum of the ball and rod system is conserved

Linear momentum of the ball and rod system is conserved only when the collision is elastic

Linear momentum of the ball and rod system may be conserved for a particular value of x.

none of these

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