Explore BrainMass

# Moments of Inertia: Example Problem

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

Would you help me with the following problem?

Two metal disks, one with radius R1 = 2.44 and mass M1= 0.840 and the other with radius R2= 4.92 and mass M2= 1.70 , are welded together and mounted on a frictionless axis through their common center. . picture attached

A) What is the total moment of inertia of the two disks?

B) A light string is wrapped around the edge of the smaller disk, and a 1.50-kg block, suspended from the free end of the string. If the block is released from rest at a distance of 2.06 m above the floor, what is its speed just before it strikes the floor?

C) Repeat the calculation of part B, this time with the string wrapped around the edge of the larger disk.

https://brainmass.com/physics/energy/moments-inertia-example-problem-351047

#### Solution Preview

Hello and thank you for posting your question to Brainmass!

The solution is ...

#### Solution Summary

This solution assists in determining moments of inertia.

\$2.19