Question

When the horse pulls the cart, the action and the reaction are on whom.​

Answer 1

Answer:

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Explanation:

The horse’s hooves push against the ground, static friction is one of the forces. Third-law reaction results in ground pushing horse’s hooves, and the horse/cart system which begins to move. The cart comes along because it is attached to the horse’s hooves (as is the remainder of the horse): the horse/cart system is accelerated by the force from the ground.

The two “objects” involved in the third-law forces pair are (1) the horse/cart system and (2) the ground.

There are also, of course, forces holding the horse and cart together - not to mention forces holding parts of the horse together, and parts of the cart together. These internal forces all cancel in pairs, and have nothing to do with accelerating the horse/cart system.