Question

A 100.-kilogram cart accelerates at 0.50 meter per second squared west as a horse exerts a force of 60. Newtons west on the cart. What is the magnitude of the force that the cart exerts on the horse?

Answer 1

The force exerted on the cart of the horse is equal to the force exerted by the horse on the cart, so its magnitude is 60N

Answer 2

The magnitude of the force on the horse by the cart is 60 N.

Step-by-step explanation:

Given that,

mass of cart = 100 kg

Acceleration of cart = 0.50 m/s²

Horse exerted force on a cart F= 60 N

The cart is moving by the force is defined as:

`F' = ma`

`F' = 100*0.50`

`F' = 50\ N`

The cart is moving by the 50 N force.

But according to newton's third law,

Newton's third law is action reaction law.

When we exerted the force on the object then the object exerted same force but opposite direction.

Therefore,

A horse exerted the force on the cart and the cart exerted equal but opposite force on horse.

F=-F''

F = -60 N

So, The magnitude of the force is 60 N

Hence, The magnitude of the force on the horse by the cart is 60 N.