Why should the friction between two disks be zero when there velocity is same?
112834
Does a tire need to slip to generate force?
35331
How can an object's instantaneous speed be zero and it's instantaneous acceleration be nonzero?
36822
Force of friction in rolling without slipping
46131
How do I calculate rotation caused by bounce friction?
110765
Angular velocity: $\omega = vr$ or $\omega = v/r$?
7149
Calculus of variations -- how does it make sense to vary the position and the velocity independently?
80645
Time for two relativistic objects to meet
109172
The direction of frictional force in smooth rolling motion
109380
How to resolve velocity components?
128537
Block on a block problem, with friction
29341
Why is average velocity the midpoint of initial and final velocity under constant acceleration?
103368
How does a small object move with constant velocity when drag force is equal to its weight?
760
Can the velocity of the center of mass of two spheres change after a collision?
32519
No-slip boundary condition for viscous fluids
19470
Why is angular velocity of any point about any other point of a rigid body always the same?
76
Which derivation of drift velocity is correct?
11877
Does the force of kinetic friction increase with the relative speed of the objects involved? If not, why not?