# Physics

A rolling barrel with initial velocity 20 m/s encounters a hill 10m tall to slow it down
1. state where its angular speed is 0
2. state where its rotational kinetic energy will be 0
3. state where its translation kinetic energy will be 0
4. for each of the two flat surfaces compare the translational kinetic energy, rotational kinetic energy, and potential energy. (State which quantities are greater than or less than the other quantities).

1. 👍 0
2. 👎 0
3. 👁 83

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