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Solid mechanics

by 385sk117
Tags: mechanics, solid
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385sk117
#1
Feb9-10, 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
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rl.bhat
#2
Feb9-10, 09:04 AM
HW Helper
P: 4,440
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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