- #1
berkdude022
- 19
- 1
Homework Statement
A rope is wrapped through an angle θ about a horizontal pole (So for ex-
ample, θ = 2π would imply the rope goes around one full time). The rope and
the pole have a static friction coeffecient of μ, and the pole is of radius r. From
one end of the rope hangs a mass m. How much force must be exerted on the
other end of the rope to keep the mass from falling?
Homework Equations
F=ma
Fc=mv^2/r
The Attempt at a Solution
So I attempted to draw out FBDs for each section and I got that the string on the left side has a Fpull in the downward direciton, a tension force pulling upward and a friction force upward. On the mass, I have mg pulling down, tension and Fpull in the upward direction.
I have the diagram uploaded.