APFIVE Angular Acceleration of Coupled Gears
Two identical gears with moments of inertia $$I$$ are meshed together. If a torque $$\tau$$ is applied to one gear, what is the magnitude of angular acceleration experienced by the second gear?
A
$$\tau/4I$$
B
$$\tau/2I$$
C
$$-\tau/I$$
D
$$\tau/I$$
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