Two metal disks, one with radius R$\_1=2\mathrm{.}54$ cm and mass M$\_1=0\mathrm{.}850$ kg and the other with radius R$\_2=5\mathrm{.}07$ cm and mass $=1\mathrm{.}53$ kg are welded together and mounted on a frictionless axis through their common center.

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

ANSWER:

Part B

A light string is wrapped around the edge of the smaller disk, and a $1\mathrm{.}50-$kg block, suspended from the free end of the

string. If the block is released from rest at a distance of $2\mathrm{.}03$m above the floor, what is its speed just before it strikes

the floor?

ANSWER:

Part C

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