Recent content by mill0132

OK, I think I understand. The net force is the frictional force because the only acceleration is in the horizontal direction. So, I can set it up like this: Fr=uN Fr=ma uN=mg ma=umg m(v^2/r)=umg u=(v^2/r)/g u=0.320 That looks much better! Thank you!

Thanks for the reply. I *think* I'm understanding this a little better, but my next attempt didn't provide a good answer, either. It came out too high a value for Mu. Converting rmp to m/s: rpm=36 revs per second=36/60=0.6rps T=1/06=1.66 v=2(pi)(r) / T v=2(3.14)(0.11) / 1.66...

Homework Statement A coin is placed 11.0cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turntable until a speed of 36rpm is reached and the coin slides off. What is the coefficient of static...