What is angular displacement?

1 Answer
Gió
May 29, 2018

It is the displacement considered as a change in angular position with respect a certain reference.

Explanation:

It may seem complicated but when you have a rotational motion it can be useful to consider, instead of a linear, an angular displacements involving angles. Have a look:
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as you can see together with the linear displacement s normally measured in meters you have a correspondin angular displacement given as:

Deltatheta=theta_2-theta_1 normally measured in radians.

The two are related through the radius r as:

s=r*Deltatheta

Hope it helps.

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