A 185 103 kg car m has a speed vi of 105 ms the car then, Ask an Expert

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A 1.85 103 kg car, m, has a speed, vi, of 10.5 m/s. The car then hits a tree. The tree doesn't move, and the car comes to rest, as shown in Figure 11-19. Assume that air resistance is negligible.

(a) Find the change in kinetic energy of the car.

(b) Find the amount of work done as the front of the car, crashes into the tree.

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