A cannon is mounted on a cart and carrying a cannonball The total mass of thecart, cannon, and ball is M, and the cart iIs rolling with no friction at a velocity v in thepositive x-direction as shown in the figure The ball, of nass m, is fired with a velocity of val in the positive x-direction What is the velocity of the cart (withcannon) after the ball is fired?
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Since no external force acts on the cannon-cannonball system, there is no change in the total momentum of the system.
Hence the momentum of system before firing is equal to that after firing.
Initially momentum of system is zero.
Thus 0= P connon + P connonball
= | P connon | = | P connonball |
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