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Laws of Motion
Question
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Why is it advised to hold the gun tightly with shoulder when it is being fired?

Answer

The velocity of kick is inversely proportional to the mass of the gun.
When the gun is held tightly to the shoulder, the effective mass of gun increases and hence recoil velocity of the gun decreases. thus, injury of the shoulder is avoided. 

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Some More Questions From Laws of Motion Chapter

What is Aristotle’s law of motion?

Is Aristotle’s law of motion now correct?

State Galileo’s law of motion.

Define inertia.

When the branches of an apple tree are shaken, the apples fall down. Why?

A person jumping out from a moving car or bus falls forward. Why?

Due to what type of inertia, the spark leaves the grind stone tangentially while sharpening the knife?

Which law of motion is also called law of inertia?

What is measure of inertia of body?

Which law of motion defines the force?