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2 cards from this section. Quick, good the night before a test.
What is rolling friction?
Think of a ball rolling on the ground.
Does rolling friction increase or decrease energy efficiency?
Consider how rolling helps with movement.
What type of friction is primarily involved when a ball rolls?
Consider the type of friction when there is no sliding.
True or False: Rolling friction is larger than kinetic friction.
Review the relationship between types of friction.
A vehicle requires 2000 N of force to maintain its rolling speed on a surface with a rolling friction coefficient of 0.01. Estimate the weight of the vehicle.
Remember that the normal force relates directly to weight.
Calculate the energy loss per meter due to rolling friction for a wheel where the rolling friction coefficient is 0.005 and the weight is 500 N.
Use the relationship between friction, weight, and energy.
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