Rotational Work

Summary

Rotational work measures the energy transferred from the rotational force on an object

Key Equations:

Rotational work:
W=abτdθ

Read Time

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Rotating Work

Rotational work measures the energy transferred when a force moves an object rotationally. An object will only rotate when a torque is applied to it. So mathematically, rotational work is the integral of torque dotted with angular displacement.

W=abτdθ
Note

There is a dot product between torque and angular displacement because only the perpendicular force contributes to rotational motion.