Question

write the equation of first law, second law and third law for class 9 standard answer everyone​

Answer 1

First law of Motion:

A body at rest will continue to stay at rest and a body in motion will continue to stay in motion unless and until acted upon by an external force.

e.g., Sudden stop of bus after braking

Second law of Motion:

The force acting upon a object is directly proportional to the mass and acceleration of the object.

F = m a

Third Law of motion:

Every and each action has an equal and opposite reaction.

e.g., Jumping by apply the force on the surface

Answer 2

Answer:

Equations of laws of motion are :-

1. v = u + at
2. s = ut + 1/2at²
3. v² = u² + 2as

where v is final velocity.

and, u is initial velocity.

and, t is the time taken.

and s is the distance traveled.

and, a is the acceleration.