Momentum | Newtons Second Law of Motion | Impulse of a Force What is Momentum? If a stone is held in the hand, some force is needed to support it. The magnitude of force required for holding a stone weighing 15 kilograms will be more than that for holding a stone of 10 kilograms. If a piece of stone is allowed to fall from a height of 10 feet, some force is required to be used by the hand to prevent it from dropping down. Now, if the same stone is allowed to fall from the height of 15 feet, … Continue reading Newtons Second Law of Motion