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#1
Apr 7 2013 04:24pm


So, i keep getting the wrong answer.
I can't seem to understand my error...
Here is what i did.
Li=0+m1vR
Lf=IW+mR^2(w)

so Li=Lf

m1vR=w(mr^2+m1wr^2)
solved for w and got 3.548
any ideas?
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#2
Apr 7 2013 04:39pm
L(particle)= mvr = 1.9kg * 12m/s * 0.34m = 7.752kgm^2/s

I=1/2*17kg * (0.16m)^2 + 1.9kg * (0.16m)^2 = .26624kgm^2,

w = 7.752kgm^2/s / 0.26624kgm^2 = 29.116

This post was edited by simpleforce on Apr 7 2013 04:39pm
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