A solid sphere with mass "m" and radius "r", slides (without rotating) on a frictionless horizontal surface, with speed of V.
At time t the sphere roll on a surface with friction "u", at time t the ball is starts rotating as it glides aswell. At time t the ball only rotates.
What is the balls center mass velocity as a function of time, from time t to time t.
The Attempt at a Solution
I have been trying to take a look at the balls inertia and torque on the ball from the friction. But the only result I got was that the ball gains speed, an that is nonsence.
Plzz... help this is a homeasignment that comes down on my final grade.