Cylinder+String Rolling w/o slipping

  • #1

Homework Statement

A uniform cylinder of mass M and radius R has a string wrapped around it. The string is held fixed, and the cylinder falls vertically. (a) Show that the acceleration of the cylinder is downward with a magnitude a=2g/3. (b) Find the tension in the string.

Homework Equations


The Attempt at a Solution

Not sure how to start, does it involve the conservation of mechanical energy?
  • #2
Try Newton's methods.

Draw a freebody diagram for the cylinder, include all the forces acting on it and use Newton's second law, along with torque = Ialpha, to solve for your unknowns

Suggested for: Cylinder+String Rolling w/o slipping