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Rolling Friction on a Wheeled Laboratory Cart
NAVAL ACADEMY ANNAPOLIS MD DEPT OF PHYSICS
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A simple model is developed that predicts the coefficient of rolling friction for an undriven laboratory cart on a track that is approximately independent of the mass loaded onto the cart and of the angle of inclination of the track. The model includes both deformation of the wheelstrack and frictional torque at the axlesbearings. The concept of rolling friction is contrasted with the static or kinetic friction that in general is also present, such as for a cylinder or ball rolling along a horizontal or inclined surface.
APPROVED FOR PUBLIC RELEASE