Question

A 1,500.0 kg car hits a brick wall with a force of 60.0 N in 1.75 seconds. What is the change in the momentum of the car?

Answer 1

Momentum Formula
p=m x v
p= kg x m/s

1N= 1kg x m/s^2
In this case we don't have the "v" variable, speed.
So, we multiply:
=60N x 1.75s
=60 kg x m/s^2 x 1.75s
=105 kg x m/s

Answer 2

105 kg m/s

Step-by-step explanation:

The change in momentum of the car is equal to the impulse, which is equal to the product between the force applied and the time of the collision:

`\Delta p= F \Delta t`

in this case, the force applied is F=60.0 N, while the time of the collision is
`\Delta t=1.75 s`, so the change in momentum of the car is

`\Delta p=(60.0 N)(1.75 s)=105 kg m/s`