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The front 1.20 m of a 1500 kg car is designed as a "crumple zone" that...

The front 1.20 m of a 1500 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision.

(a) If a car traveling 25.0 m/s stops uniformly in 1.20 m, how long does the collision last?
_____ s
(b) What is the magnitude of the average force on the car?
_____ N
(c) What is the acceleration of the car? Express the acceleration as a multiple of the acceleration of gravity.
_____g

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Answer #1

(a)The distance is s = (+1)t = (0.5)(0+25.0}t = 12.5t The time is, 125 120 125 = 9.6x10-2s (b)The force is, _Change in moment

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