A car's bumper is designed to withstand a 7.20-km/h (2.0-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 0.165 m while bringing a 840-kg car to rest from an initial speed of 2.0 m/s.
A car's bumper is designed to withstand a 7.20-km/h (2.0-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 0.165 m while bringing a 840-kg car to rest from an initial speed of 2.0 m/s.
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A car's bumper is designed to withstand a 7.20-km/h (2.0-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 0.165 m while bringing a 840-kg car to rest from an initial speed of 2.0 m/s.
Expert Solution
Step 1
Given:
The mass of the car is m = 840 kg
The initial speed of the car is vi = 2 m/s
The bumper cushions the shock by absorbing the force over a distance is d = 0.165 m
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