- #1
Saitama
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Homework Statement
A solid sphere rolling on a rough horizontal surface with a linear speed ##v## collides elastically with a fixed smooth, vertical wall. Find the speed of the sphere after it has started pure rolling in backward direction.
Homework Equations
The Attempt at a Solution
Before collision, the velocity is ##v## and angular velocity is ##v/R##. After collision the velocity is ##v## in backward direction. I am confused about what happens to the angular velocity when the collision takes place? Do the magnitude of angular velocity changes?
I think that as the particle on the edge colliding with the wall has two components of velocity, the component which is perpendicular to the wall will not change so the direction of angular velocity remains unchanged. Am I going in the right direction?
Thanks!