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The moment of inertia, or rotational inertia, determines the torque needed for a desired angular acceleration about a rotational axis. Like inertial mass is the resistance to being linearly accelerated, the moment of inertial is the resistance to being rotationally accelerated.

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Calculate the kinetic energy, momentum, and force of a collision between a car and a deer

I recently struck a deer head on at 65mph in an approximately 4,500-lb vehicle (including the weight of myself, the fuel, and other contents). The collision produced a dent in the front of the car wit …
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