The front 1.20 m of a 1350 kg car is designed as a crumple, Ask an Expert

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The front 1.20 m of a 1350 kg car is designed as a "crumple zone" that collapses to absorb the shock of a collision.

(a) If a car traveling 29.0 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

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