Question

The bumpers on cars are designes so that cars will bounce off each other during low-speed...

The bumpers on cars are designes so that cars will bounce off each other during low-speed collisions, causing less damage. Consider a bumper test where a 1840 kg car traveling to the right at 1.55 m/s collides with a 1310 kg car going to the left at 1.10 m/s . The test results show that the heavier car's speed just after the collision was 0.280 m/s in its original direction. You can ignore any road friction during the test crash.

Part A

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

Part B

Calculate the change in the total kinetic energy of the two-car system during this collision.

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