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## Homework Statement

In the figure shown, a ball of mass m collides perpendicularly on a smooth stationary wedge of mass M, kept on a smooth horizontal plane. If the coefficient of restitution of collision is e, then determine the velocity of the wedge after collision.

## Homework Equations

can we conserve momentum when the collision is partially elastic ?

## The Attempt at a Solution

i wrote→ mV°sinθ= MV + meV°sinθ

is this right??