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प्रश्न
If action is always equal to reaction, explain why a cart pulled by a horse can be moved.
उत्तर
In a horse cart, the horse pushes the ground in backward direction. According to Newton’s third law of the motion, the ground pushes the horse in forward direction. Thus, the horse moves in the forward direction. As the cart is attached to the horse, the cart too moves in the forward direction.
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