Wheel attached to a fixed shaft

[aigerimzh]

Homework Statement

A wheel is attached to a fixed shaft, and the system is free to rotate without friction. To measure the moment of inertia of the wheel-shaft system, a tape of negligible mass wrapped around the shaft is pulled with a known constant force F. When a length L of tape has unwound, the system is rotating with angular speed w(omega)0. Find the moment of inertia of the system, I0.

Homework Equations

The Attempt at a Solution

Please help me... I don't have any idea. Except Answer clue: if F=10N, L=5m, w(omega)0=0.5rad/s, then I0=400 kg*m^2

 

[LawrenceC]

Think about work/energy relationships. What have you studied about work, potential energy, and kinetic energy?