The variable circular movement

A point has a circular movement, if it follows a circular track and if in equal times, the angle speed changes. A circular movement means, that an object is moving in acircular track. The speed of the object is variable so it can increase or decrease.

A few examples are:

-the blades of a helicopter

-the wheel of a car, when the car accelerates

A helicopter is a clear example of variable circular movement. Its variable because the speed of the bladesis increasing.

Here is a video for illustrating this principle.

 

This is a how you can calculate the angular acceleration

 

a : the angular acceleration

ω0 : the angular velocity at the beginning

ωt : the angular velocity at that moment

 

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