- #1
VictoriaWoo
- 5
- 0
Homework Statement
A horizontal force is exerted on a uniform disk towards the center of mass resting on a horizontal table. The surface has friction. How does the disk begin to move ? Because when the force increases from zero, at first the friction is static friction which means the net force is still zero but the static friction can form a torque on the disk which will make it rotate. It is absurd that the center of the disk is at rest while the disk begins to rotate.