A car of mass m travelling at 40.0 km/hr collides head-on with a stationary car of equal mass, and stays attached until the pair come to a stop. The car in motion does NOT apply the brakes, whereas the stationary car has a braking force of 0.2mg. At what distance from the collision site does the pair of cars come to rest?

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The Answer of A car of mass m travelling at 40.0 km/hr collides head-on with a stationary car of equal mass, and stays attached until the pair come to a stop. The car in motion does NOT apply the brakes, whereas the stationary car has a braking force of 0.2mg. At what distance from the collision site does the pair of cars come to rest?

A Car of Mass M Travelling at 40