Homework Answers
I choose disk a.
because, it has less moment of inertia compared to disk b.
we know, Net torque = I*alfa
==> alfa = Net torque/I
the disk which has less moment of inertia has more angular acceleration.
for disk a, I = m*R^2/2
for disk B, I = m*(R1^2 + R2^2)/2
R1 is inner radius and R2 is outer radius
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ground, and so the same frictional force.
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