How can I design a straightforward device that shows the power, momentum and angular momentum principles?

Notice power device on: problem by Albert C. : How can I style a simple device that shows the energy, momentum and angular momentum principles My physics teacher asked me to a physical device within a week he style my general understanding of power conservation, the dynamic principle, and demonstrate the principle of angular momentum. Any tips on how this device or a device that Goldberg will be simple to build together Greatest answer: response of simplicitus flywheel electric car. (A

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