# 3 Keys to Rotational Motion

1) Use the parallels to linear motion: x and theta, v and omega, a and alpha, mass and moment of inertia, torque and force.

2) The many forms of torque: Torque = r x f, I times alpha, and net torque = rfsintheta

3) Angular momentum! L = r x p = r x mv and Net L = mrv times sintheta. Also the rate of change of L = torque

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