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April 16, 2014

Homework Help: Physics

Posted by Nick on Wednesday, September 2, 2009 at 11:44pm.

A car traveling 56 km/h is 21.0 m from a barrier when the driver slams on the brakes. The car hits the barrier 2.17 s later.

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

b)How fast was the car traveling at impact?

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