A frictional torque is exerted on a platform while it rotates because the force is along it's axis and changes only the magnitude and not the direction of the angular velocity.
What is frictional torque?
A frictional torque is a rotational force that is caused by the movement of two objects that are in contact.
To collect data needed to find the frictional torque exerted on the platform while it rotates the experimental procedure the student should use include the following:
- A disc shaped platform with know inertia
- The platform should be mounted on a fixed axle.
- The platform should also be rotating on a horizontal plane.
The quantities that should be measured is that rotational frictional force and angular velocity.
Learn more about friction here:
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