What is angular displacement?

1 Answer
May 29, 2018


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


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:


Hope it helps.