To illustrate this concept, consider a particle

The tangential (circumferential) acceleration of the particle (

The tangential force (

Thus,

where

Now, let’s say the force

Since Newton’s Second Law applies to an inertial reference frame, this means that for

From the point of view of an observer sitting on the turntable (and moving with it), the Euler force is the apparent force that appears to be acting on the particle, pushing it in the circumferential (clockwise) direction. The line of action of this apparent force is therefore in the circumferential (tangential) direction and (as a result) is perpendicular to the line passing through point

The particle will also move in the circumferential (clockwise) direction relative to the turntable, if the force

It is worth noting that, if the turntable has angular velocity, two more fictitious forces can arise. They are the Coriolis force, and the Centrifugal force.

Return to

Return to

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