A truck and a car lock bumpers and move off together. The kinetic ener…

Question

A truck and a car lock bumpers and move off together. The kinetic energy of the pair:

Accepted Answer

B. Falls

1. Sticking together is a perfectly inelastic case.
2. Some energy went into dents and heat.
3. So the kinetic energy falls.
_Source: OpenStax University Physics Volume 1, Chapter 9, Linear Momentum and Collisions._

Answer

Flips

Answer

Rises

Answer

Holds

A truck and a car lock bumpers and move off together. The kinetic energy of the pair:

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