A car traveling 56 kmh is 220 m from a barrier when the, Ask an Expert

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A car traveling 56 km/h is 22.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.04 s later.

(a) What was the car's constant deceleration before impact?

_____ m/s2

(b) How fast is the car traveling at impact?

_____ m/s

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