Question

.a) Define inertia and list its type. Give two examples to describe each type.
b) Define Momentum. State it’s SI Unit

Answer 1

Answer:

A) Inertia is the resistance, of any physical object, to any change in its velocity. This includes changes to the object's speed or direction of motion.

types...

1. Inertia of Rest: (sudden start  of a bus you get pushed backwards)

2. Inertia of Motion (Sudden stop of a bus you get pushed forward)

3. Inertia of Direction(Hitting of a cricket ball)

B) Momentum The quantity of motion possessed by a moving body is known as momentum of the body.

Momentum of an object of mass m moving with a velocity v is the product of it.

It is denoted by p

p = mv

Its SI unit is kg-ms-1.

As from Newton’s llnd law, rate of change of momentum is equal to force applied

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