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Physics 13 Online
OpenStudy (anonymous):

HELP ME! PLEASE!!!

OpenStudy (anonymous):

A clutch consists of two disks with rotational inertias I1 = 4 kg∙m^2 and I2 = 2 kg∙m^2 which are mounted to rotate about a common axis. Disk 1 is initially rotating at 60 rpm and disk 2 is initially at rest. The two disks are then pressed together so that, after some slippage, they both rotate at the same angular speed. (a) What is their final angular speed? 40 rpm BUT (b) How much kinetic energy, if any, was lost when the disks were engaged

OpenStudy (anonymous):

please help :(

OpenStudy (anonymous):

I found final w by I1W1 + I2W2 = (I1+I2)Wf ... plugged and chugged...

OpenStudy (anonymous):

found it thannkkssss anyway

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