Aspeeding car collides with a wall (attached to earth). consider the car-earth system to be isolated. a loud sound is produced in the collision, and the car is deformed. what can you say about the momentum of the car-earth system in this case?

Momentum of car and Earth as a system will remain conserved

Explanation:

As we know that momentum conservation is applicable when system has no external force on it

So here we will say

now we know that

if we will have F = 0

so here we can say

now since Earth and car as a whole system is considered then there is no external force on that system.

So here momentum as a whole will remain conserved.

the force required to move the cart is divided by three or 33.33 n.

the answer is 12 as i may remember

: )