A moving car collides with a stationary car, after which they move at the same velocity. After going some distance they stop. The following information is given:
- mass of the 2 cars
- the velocity of the 1st car before collision
- the distance the 2 cars covered together after the collision
Will it be possible to calculate the force the stationary car exerted on the moving one?
My friend used the equation $$v^2=u^2+2as$$ and the 3rd information stated above to calculate acceleration caused by the force exerted by the stationary car.
But, had there not been the friction of the road, wouldn't the 2 cars be moving forever after the collision?
Is it my friend or I am incorrect? If I am right, would I be able to calculate it if the time the two vehicles were in collision were given?