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In a crash test, a car with a mass of 1500 kg is initially moving at...

In a crash test, a car with a mass of 1500 kg is initially moving at a speed of 18 m/s just before it collides with a barrier. The final speed of the car after the collision is zero. The original length of the car is 4.48 m, but after the collision, the smashed car is only 3.86 m long. Making the very rough approximation that the large force that the barrier exerts on the car is approximately constant during contact, determine the approximate magnitude of this force?

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Answer #1

find the acceleration during collision and use the acceleration to find the magnitude of collision force as shown below

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