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Q.

Is it true to say that the law of conservation of momentum plays a role in the recoil of a gun and the motion of a rocket?


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a

True

b

False 

answer is A.

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Detailed Solution

The above statement is true.
According to the law of conservation of momentum, the momentum of an object is conserved before and after the happening of an event. In simple words, the system's momentum before the event happens is equal to the system's momentum after the event. For example, in the case of the gun's recoil, it is observed that the momentum before firing the gun is equal to the momentum after firing it. Also, propulsion is created in the motion of a rocket because the releasing gases' momentum is equal to the downward force applied by the gases.
 
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