Asked by Rachel
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?
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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