A push or pull which changes the state of rest or of uniform motion of a body, Force, change in shape or size, either start or stop a moving object, change in direction, Effect of force, Balanced or unbalanced forces, Type of forces, if the resultant force acting on an object is 0 the force is said to be balanced, Balanced force, If the resultant of a force acting on an object is non zero value , Unbalanced force.

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