Which of these statements are true?
(A)The horse applies a force on the cart and the cart pulls the horse back with a force equal and opposite in direction.
(B)The horse applies a force on the cart and the cart applies a force on the ground.
(C)The two forces mentioned in option A cancel each other.
(D)The two forces in option A are acting on two different bodies and don’t cancel each other.

A and D

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A and C

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B only

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D only

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Solution

The correct option is A
A and D

In accordance with Newton's third law, the horse applies a force on the cart and the cart pulls the horse back with a force equal and opposite in direction.
Since the two forces in option A are acting on two different bodies and they don’t cancel each other.

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Do you agree with the explanation given by the horse? Support your answer with proper reasons.

A horse is harnessed to a cart. If the horse tries to pull the cart, the horse must exert a force on the cart. By Newton's third law the cart must then exert an equal and opposite force on the horse. Since the two forces are equal and opposite, they must add to zero, so Newton's second law tells us that the acceleration of the system must be zero and therefore no matter how hard the horse pulls, it can never move the cart.

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The correct option is A A and D In accordance with Newton's third law, the horse applies a force on the cart and the cart pulls the horse back with a force equal and opposite in direction. Since the two forces in option A are acting on two different bodies and they don’t cancel each other.

The correct option is A
A and D

In accordance with Newton's third law, the horse applies a force on the cart and the cart pulls the horse back with a force equal and opposite in direction.
Since the two forces in option A are acting on two different bodies and they don’t cancel each other.