Question

all important definitions of chapter motion class 9

Answer 1

Answer:

Motion can be defined as when a object change its position with respect to time.

Newton had given three laws on motion---

1-if a body is in motion then it bill remains in motion of a body is interest then it will remains in rest unless an external force is applied on it.

2--the force applied on a body is equal to the product of the mass and displacement applied in the direction of the force that is f is equal to m a.

3--

Answer 2

Answer:

third law of motion

Explanation:

if one object exerts a force on other object the second object exerts a force on the first one with equal magnitude but in opposite direction