Question

if action is always equal to reaction, explain why a cart pulled by a horse can be moved.​

Answer 1

$\huge\fcolorbox{red}{cyan}{Answer}$

• According To the Newton's Third Law of Motion ,When The horse exert some Force On the Cart then the cart also Exert some force on horse . So at first It may Seem that action and reaction force being equal and Opposite Should Cancel out and cart should not move at all .

• But it should be noted That it is the only the force exerted by Horse on Cart will determine wheather The Cart Will Move or not and The force exerted by Cart on the horse affect the horse alone .

• Thus if The Horse is able to apply the force greater than the Frictional Force present then the cart will move . So to make the cart move , The horse bends forward and pushes the ground backward with its feet . When the forward reaction caused by The Backward force of the horse is greater than the frictional Force , The cart moves.

If it helped then please follow .

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.

Plz mrk as brainliest ❤