What is 3 law of motion?

Answer 1

Newton's three laws of motion are

1. Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.
2. The sum of the forces acted upon an object, in newtons, is equal to the mass of the object, in kilograms, times the acceleration of the object, in meters per second squared. Fnet=ma. The force and acceleration vectors must be in the same direction, i.e. if you are trying to find the vertical force, the vertical acceleration must be used instead of the total.
3. For every action, there is an equal and opposite reaction.

Answer 2

The third law of motion states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on a second object, the second object exerts an equal force in the opposite direction on the first object.