Question

State and explain the law of inertia (or Newton's first law of motion).

Answer 1

Hint:Sir Isaac Newton (1642-1727) an English scientist discovered the three laws of motion. Today these laws are known as Newton’s Laws of Motion and describe the motion of all objects on the scale we experience in our everyday lives and Newton's first law of motion states that An object in motion tends to stay in motion and an object at rest tends to stay at rest unless acted upon by an unbalanced force.

Complete step-by-step solution:
Newton's First Law of Motion explains how inertia affects moving and non-moving objects.
Newton's first law states that an object will remain at rest or move at a constant speed in a straight line unless it is acted on by an unbalanced force.
 Inertia comes from mass. Objects with more mass have more inertia
Example-
To understand inertia, imagine moving a football and a tennis ball that are at rest. The tennis ball has a mass of 0.05 kilogram, and the foot ball has a mass of 5 kilograms. The football has 100 times more mass than the tennis ball, so it has 100 times more inertia too.

Inertia is of three types :
->Rest inertia- An object stays where it is placed, and it will stay there until you or something else moves it. Like When a carpet is beaten by stick the carpet is set into motion. But due to inertia, the dust particles remain at rest.
->Motion inertia- When an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force." ... This tendency to resist changes in their state of motion is described as motion inertia. Like if you roll a ball, it will continue rolling unless friction or something else stops it by force.
->Direction inertia- An object will stay moving in the same direction unless a force acts on it like One's body movement to the side when a bus makes a sharp turn.

Note:-
Newton's second law of motion states that Force equals mass times acceleration (F = ma).
If you double the mass, you double the force. If you double the acceleration, you double the force
Newton's third law of motion For every action there is an equal and opposite reaction.
gravity is pulling you down in your seat, but Newton’s Third Law says your seat is pushing up against you with equal force. This is why you are not moving.