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Pulleys Background Information A Push or Pull which can vary in magnitude or direction on an object is called Force. The direction of force is the direction of push or pull. If the push and pull are on opposite directions, they act simultaneously, in other words the one with the greater push gives the direction of force. The standard unit for force in International system is Newton (N). Altogether there are five types of forces which are given below with their definitions mentioned- 1. Muscular Force- The force exerted by the muscles is known as Muscular force. 2. Gravitational Force- When an object is thrown in the air, it automatically comes down. This is because the Earth attracts every object or body towards it with a force called the force of Gravitation. 3. Magnetic Force- The force exerted by a magnet is called Magnetic force. For e.g. If I bring a magnet near some...

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