When cars are equipped with flexible bumpers, they will bounce off each other du

Question

When cars are equipped with flexible bumpers, they will bounce off each other during low-speed collisions, thus causing less damage. In one such accident, a 1850kg car traveling to the right at 1.60m/s collides with a 1400kg car going to the left at 1.10m/s . Measurements show that the heavier car's speed just after the collision was 0.250m/s in its original direction. You can ignore any road friction during the collision.

Part A
What was the speed of the lighter car just after the collision?

Part B
Calculate the change in the combined kinetic energy of the two-car system during this collision.

Explanation / Answer

- 2730 J

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