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Laws Of Motion

Question

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A body of mass m is placed on rough horizontal surface of coefficient of friction μ at rest and no force is acting on it except gravity. What is force of friction between the body and the surface?

Solution

Since the body is at rest, the force of friction acting between the body and the surface is zero.

Some More Questions From Laws of Motion Chapter

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?

What happens to a stone tied to the end of string and whirled in a circle if the string suddenly breaks?

Which law of motion gives the quantitative knowledge of force?

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