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JEE Main 2020 Question Paper with Solution PDF

Inertia - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

Quick Facts

  • 4 Questions around this concept.

Solve by difficulty

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R

Assertion A: An electric fan continues to rotate for some time after the current is switched off.

Reason R: The fan continues to rotate due to the inertia of motion.

In the light of the above statements, choose the most appropriate answer from the options given below:

Concepts Covered - 1

Inertia

 

  1. Definition- Inertia is the property of a body by which it continues to remain in its existing state of rest or uniform motion in a straight line unless an external force acts on it.

  • It is a dimensionless and unitless quantity.             

  1. Types of inertia:-

  • The inertia of rest- Inability of a body to change its state of rest by itself.

                          Ex- Person standing in the bus thrown backward when the bus starts suddenly.

  •         The inertia of motion- Inability of a body to change its state of motion by itself.

                          Ex- Person standing in a moving bus thrown forward when the bus stops suddenly.

  •  The inertia of direction- Inability of a body to change its direction of motion by itself.

                          Ex- The raindrops falling vertically downwards cannot change their direction of motion.

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Inertia

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