Suppose a gun were made of a strong but very light material. Suppose also that the pellet is more massive than the gun itself. For such a weapon

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When a gun fires a pellet, especially if the pellet is more massive than the gun itself, the gun will experience a significant recoil due to Newton's third law of motion (for every action, there is an equal and opposite reaction). Since the gun is lighter, it will move back with a greater velocity compared to a heavier gun. This could potentially make the situation more dangerous for the shooter than the target, assuming the pellet's mass and the gun's light material lead to an unusually strong recoil. Conservation of energy and momentum still hold, as these are fundamental principles that do not depend on the masses of the objects involved.

Suppose a Gun Were Made of a Strong but Very