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It is because of newton's third law ......

According to this law , every action has an equal and opposite reaction .

Therefore , when a gun is shot ( here the action force ) , the bullet is fired out (released) from the gun with a high force . As a result the gun has to produce equal and opposite reaction . As a result , the gun jerks back .......

In order to reduce the " recoil " of the gun ,the mass of the gun is increased .

That's why guns are usually heavy weighted .

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11y ago
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9y ago

This can be explained either with Newton's Third Law, or with Conservation of Momentum. Using the second argument, the bullet acquires a momentum in the "forward" direction; so the gunman must acquire a corresponding momentum in the "backward" direction to complnsate.

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Q: Why a gunman jerk in backward direction while firing gun?
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