Question

If action is always equal to reaction explain why a cart pulled by a horsecan be moved?

Answer 1

Here is your answer-
Yes we know that each action has an equal and opposite reaction.
When the cart is being pulled by a horse then the horse is also being pulled by the cart.If each action has eqal and opposite reaction, then the horse should stop moving so the cart.
But it in the other hand it depends on the weight and mass of the cart and on the power of the horse.If the power of the horse is more than another then it will pull the cart.

Answer 2

Question :-

If action is always equal to the reaction, explain how a horse can pull a cart?

Answer :-

The third law of motion states that action is always equal to the reaction but they act on two different bodies.

In this case the horse exerts a force on the ground with its feet while walking, the ground exerts an equal and opposite force on the feet of the horse, which enables the horse to move forward and the cart is pulled by the horse.

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