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CaptainSFS
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Homework Statement
A certain non-uniform but cylindrically symmetric cylinder has mass 9 kg, radius 1.2 m, and moment of inertia about the center of mass 7.6 kg m2. It rolls without slipping down a rough 20° incline.
What is the acceleration of the cylinder's center-of-mass?
Homework Equations
kinematics and the rotational equivalents
The Attempt at a Solution
The hints I was given was to find/use 3 equations. I believe the equations I found are wrong. I seem to have some difficulty with kinematics, and now especially this rotational kinematics.
I found:
m*g*sin(20) - F(friction) = m*a
T(orque) = I * alpha
a = alpha * r
Any help to whether these are the useful equations, and how I may go about using these? Thx. :)