Homework Help: Physics

Posted by Rachel on Thursday, April 26, 2012 at 2:00pm.

please i need help with this question.

Initailly at rest, a car (mass=1300kg) accelerates north from a set of traffic lights at a constant rate for 10s. 11s after starting to accelerate it crosses an intersection and is hit by a second car (mass=1224kg) heading west at 65k/h. The two cars stick together and slide of across the intersection at 32km/h. How much energy was transformed into heat or sound in the collision and how much impulse did the engine of the first car provide while it was accelerating?

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