Asked by Cori

A cannon is mounted on a railroad car. The cannon shoots a 1.75 kg ball with a muzzle velocity if 300 m/s. The cannon and the railroad car together have a mass of 4500 kg. if the ball, cannon, and railroad car are initially at rest, what is the recoil velocity of the car and cannon?
Answered by bobpursley
which way is the cannon pointed? Especially the shooting angle.

If horizontal, along the direction of the tracks...

momentumcannon+momentumcar=zero
1.75*-300=4500V
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