A firecracker at rest bursts into many pieces. Compared to before, the…

Question

A firecracker at rest bursts into many pieces. Compared to before, the kinetic energy:

Accepted Answer

C. Increases

1. The pieces fly outward fast.
2. Stored chemical energy became motion.
3. So the kinetic energy increases.
_Source: OpenStax University Physics Volume 1, Chapter 9, Linear Momentum and Collisions._

Answer

Is zero

Answer

Is fixed

Answer

Decreases

A firecracker at rest bursts into many pieces. Compared to before, the kinetic energy:

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