Acceleration, Friction Force, Coefficient of Friction
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A hollow, spherical shell with mass 2.00 kg rolls without slipping down a slope angled at 34.0 degrees
A) Find the acceleration (take free fall to be 9.8 m/s^2)
B) Find the friction force
C) Find the minimum coefficient of friction needed to prevent slipping
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Since the sphere doesn't slip;
torque = (moment of inertia of sphere)(angular acceleration) = (force due to friction)(radius of sphere)
Iα = (Ff)(r)
where;
I=2mr^2/3
α=a/r
if we ...
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