- #1
numan-chris
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Hi all, first year MechEng student here, final question of the final assignment of the year, would appreciate any assistance:
A 0.150 kg yo-yo has an outer radius R that is 5.60 times greater than the radius r of its axle. The yo-yo is in equilibrium if a mass m is suspended from its outer edge, as shown in the figure .
(http://session.masteringphysics.com/problemAsset/1123236/2/Walker.11.95.jpg)
Find the tension T1
Find the tension T2
Find the mass 'm'
w=mg
I=1/2mr2
Having drawn FBD's for the system, I found no problem in deriving an equation for T1 (if I find this I'm sure I will have no problem with the rest) however it contained variables which when submitted, I was told the answer was not to contain. After much struggling I can't see how it can be done.
Homework Statement
A 0.150 kg yo-yo has an outer radius R that is 5.60 times greater than the radius r of its axle. The yo-yo is in equilibrium if a mass m is suspended from its outer edge, as shown in the figure .
(http://session.masteringphysics.com/problemAsset/1123236/2/Walker.11.95.jpg)
Find the tension T1
Find the tension T2
Find the mass 'm'
Homework Equations
w=mg
I=1/2mr2
The Attempt at a Solution
Having drawn FBD's for the system, I found no problem in deriving an equation for T1 (if I find this I'm sure I will have no problem with the rest) however it contained variables which when submitted, I was told the answer was not to contain. After much struggling I can't see how it can be done.