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Question 8
A car's bumper is designed to withstand a 4.0-km/h (1.12-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 on
a bumper that collapses 0.200 m while bringing a 900-kg car to
rest from an initial speed of 1.12 m/s.
F=
kN
The force is negative/positive
car is
10 pts
because the

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