- #1
Vriska
- 138
- 2
Homework Statement
A bead is placed on a rod with coefficient of friction m, it's accelerated from rest with angular velocity a, find the time it takes to start moving. Neglect gravity
Homework Equations
Force of friction =Nm
The Attempt at a Solution
They said there's no gravity, so i don't quite see where the normal force is coming from so it'd fly off instantly. Well this is the wrong answer, where the heck is the normal force coming from? If i do this in space, id expect the rod to just move on without doing anything bc it's actually not pressing against anything