Answer :

Final answer:

When a cannon fires a cannonball, the cannon recoils backward due to Newton's third law of motion and conservation of momentum.


Explanation:

When a cannon fires a cannonball, the cannon experiences recoil due to Newton's third law of motion. This law states that for every action, there is an equal and opposite reaction. As the cannonball is propelled forward, the cannon experiences an equal force in the opposite direction, causing it to recoil backward.

This recoil is a result of the conservation of momentum, where the total momentum before firing is equal to the total momentum after firing. The force that propels the cannonball forward is mirrored by an equal force pushing the cannon backward.


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