Question

2. Inertia of a body depends on

a) weight of the object b) acceleration due to gravity of the planet

c) mass of the object d) Both (a) and (b)

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Answer 1

Explanation:

mass of the body ie. C

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Answer 2

Answer:

c) Mass of the object

MORE TO KNOW -

• Inertia is that property of a body which resists the change in its state of motion.

• It depends upon the mass of a body.

• Types of inertia -

i) Inertia of rest - When a body starts from rest

ii) Inertia of motion- When a body comes to rest

iii) Inertia of direction - When a body changes its direction.

• Inertia of rest is seen when we falls when a bus suddenly starts. it is due to inertia as the bus is in state of rest and inertia resists it to start.

• Inertia of motion is seen when a vehicle suddenly stops and we fall as our feet is in state of motion and it resists this change.

• Inertia of direction is seen when a vehicle turns in left and we falls on left side.

• Newton's first law is also called law of inertia.

• Inertia is scalar quantity as it only depends upon object mass and not the direction.