Question

Two metal disks, one with radius R1 = 2.54 cm and mass M1 = 0.850 kg and the other with radius R2 = 5.04 cm and mass M2 = 1.58 kg , are welded together and mounted on a frictionless axis through their common center. (Figure 1).

Part A Part complete 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 2.10 m above the floor, what is its speed just before it strikes the floor?

Answer 1

Itate : 1, + 1 : M, 4 IM, ***4325 x-94102) , . Total : 1 . 2 . 2 y|x for 3 4 5 By conservation of Euersy: mgh - į mv? + 1W2 _____ : : Tu e : V _ __________________R s magh I mv² + 1 u ugh a tu? (m + 1 ta 1 2mgh m + I R2 2 x (So X 3.8 x 2:10 1:5o + 2 28 x|9-3 (0.0254)- | :: v = 3. SO !