A car’s bumper is designed to withstand a 25.65 m/s collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force (in unit of N) on a bumper that collapses 0.12 m while bringing a 1,775.97-kg car to rest from an initial speed of 25.65 m/s. Your answer could be a large number between several thousands to hundreds of thousands. Just put in the raw number, for example, 123456.7

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.