Question

Your car is parked on a 10 degree incline when an identical car parked in front of you starts to roll backwards.

(a) The other car was parked 2 m in front of yours when the parking brakes failed and it began rolling without friction. How long does it take for the car to reach yours?

(b) How fast is the other car moving when it collides with yours?

c) If the coefficient of static friction between the road and your tyres is 0.6 what is the minimum duration of the collision so that your car won’t move?

Answer 1