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Homework Statement
A ball (hollow sphere) of radius .11m and mass .444kg is mounted on a frictionless axle. A massless cord is wrapped around the ball supporting an object of mass .02kg. Find the angular acceleration of the wheel, linear acceleration of the object and tension in the cord.
Homework Equations
The Attempt at a Solution
[tex]\Sigma[/tex]F=F_{g}+T=m*a
.2+T=.02a
[tex]\Sigma[/tex][tex]\tau[/tex]=F*r=I*[tex]\alpha[/tex]
T*.11=(.0036*a)/.11
T = .2975*a
.2 + .2975*a = .02*a
.2 = .2775a
.72 = a
That's what I tried, but it's wrong.
Can anyone help?
Homework Statement
Homework Equations
The Attempt at a Solution
Attachments

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