Question

A 0.110-kg hockey puck, moving at 35.0 m/s, strikes a 0.290-kg jacket that is thrown onto the ice by a fan of a certain hockey team. The puck and jacket slide off together. Find their velocity. (Take the positive direction to be that of the initial direction of the puck.)
The initial momentum of the puck and the final momentum of the puck and jacket, moving together, are the same.

Write that in equation form and solve for the final velocity.

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