Problem B13:
A box is on a rotating disk, and is located a distance of n_{1}
meters from the center. The coefficient of static friction between
the box and the disk is &mu = 1/n_{2}. What is the shortest
time of rotation (Period) that the disk can have such that the box does
not slide off the disk? If the shortest period T = 2 &pi n_{3}
seconds, what is n_{3}? For this problem, g = 10 m/s^{2}.
Note that n_{1} has units of meters, and n_{3} has units of
seconds. n_{2} is unitless.

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