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A uniform solid cylinder of diameter 14cm rolls with out slipping with angular velocity 25 rad/s . The cylinder suddenly contacts a plane inclined at an angle theta. The Value of theta which Brings the cylinder immediately to rest is ?
 one year ago
 one year ago
Yahoo! Group Title
A uniform solid cylinder of diameter 14cm rolls with out slipping with angular velocity 25 rad/s . The cylinder suddenly contacts a plane inclined at an angle theta. The Value of theta which Brings the cylinder immediately to rest is ?
 one year ago
 one year ago

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Yahoo! Group TitleBest ResponseYou've already chosen the best response.0
dw:1360757173484:dw
 one year ago

Mashy Group TitleBest ResponseYou've already chosen the best response.0
won't 90 degrees do?
 one year ago

Mashy Group TitleBest ResponseYou've already chosen the best response.0
oh wait.. that ll just bounce it back i guess
 one year ago

shubhamsrg Group TitleBest ResponseYou've already chosen the best response.0
dw:1360767373040:dw Linear velocity before = wr = 25*0.07 = 1.75 let it remain in contact with plane for time dt, then, (Nsinx)dt = m(1.75) also, it stops rolling, then Tdt = I(25) where T=torque => (Ncosx)(0.07) dt= (1/2)m(0.07)^2 * 25 Divide both eqns
 one year ago

VincentLyon.Fr Group TitleBest ResponseYou've already chosen the best response.0
I do not understand the question. You cannot bring the cylinder immediately to rest. That would mean you make a finite amount of energy disappear in an infinitesimal amount of time. You would need for that an infinite power, which is not physically acceptable.
 one year ago
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