Question

Third equation of motin please help me understand

Answer 1

3 equation of motion is v^2-u^2
it is relation between position and it's velocity

Answer 2

According to the third equation of motion to every there is always an equal and opposite reaction . Action and reaction act on different bodies. We should always remember that forces always occur in pairs and these forces always act at the same instant of time. For example: Recoiling of gun.