Question

Two cars collide in a parking lot. Before the collision, their total momentum was 1800 kg m/s to the east. What is their total momentum after the collision.

Answer 1

1800 east

Step-by-step explanation:

Answer 2

During collision there is no force on two cars together

So here we can say

`F = (\Delta P)/(\Delta t)`

Since force on the system is zero

`0 = (\Delta P)/(\Delta t)`

`\Delta P= 0`

`P_i = P_f`

So after collision momentum will remain the same i.e. 1800 kg m/s