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#1
Feb910, 06:45 AM

P: 50

Ball A B Mass m 2m Length of tread is 2R where R is the radious of the Circle. I have to find the tension on the tread and angles I could have found the angles by assuming that the angle 1 and angle 2 are same but as balls' masses are different, the angles must be different as well, and if they are different i dont think i can find the angle... Any helps? Please TT 


#2
Feb910, 09:04 AM

HW Helper
P: 4,433

Ball comes rest when
m1*g*sinθ1 = m2*g*sinθ2. It is given that m2 = 2m1 So sinθ1 = 2*sinθ2.........(1) Length of the thread is 2R and radius is R. So (θ1 + θ2) = 2R/R = 2 rad. Put θ2 = (2  θ1) in the eq.1 and solve for θ1. 


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