Why is kinetic friction less than static friction?
38843
Why are there both Static and Kinetic Friction?
106453
Does friction always act opposite to the motion of the body?
109172
The direction of frictional force in smooth rolling motion
144615
How much work can a force on a spring do? (Why are two methods wrong?)
29832
What is the cause of rolling friction? & why is it less than sliding friction?
45613
Conservation of energy when slowing an object down
147388
Why do these two ways of understanding constant acceleration give different results?
63069
Why the Principle of Least Action?
17753
Positive work done by friction
53006
How is frictional force dependent on normal reaction?
131167
Kinetic energy of the object, but Potential energy of the system: Why is it so?
21761
Consider a horizontal surface with or without friction. Ideally, will a wheel rolling without slipping roll forever in both cases?
37793
What role does static friction force play for a rolling object? How can I know what direction it points?
94884
If friction acts on car all time, why is it not accelerating forever?
8583
Dependence of Friction on Area
84338
Is friction a function of surface area? What is the microscopic workings of friction?
2295
Consistent method for finding direction of static friction