The platter of the hard drive of a computer rotates at frequency f = 7200 rpm (rpm = revolutions per minute = rev/min) a.

Question

The platter of the hard drive of a computer rotates at
frequency f = 7200 rpm (rpm = revolutions per minute = rev/min)
a. Calculate the angular velocity o (rad/s) of the platter.
b. The reading head of the drive r = 3 cm (= 0.03 m)
from the rotation axis. Calculate the linear speed v of
the point on the platter just below it.
c. If a single bit requires 0.5 µm of length along the
direction of motion, how many bits per second can the
writing head write when it is r = 3 cm from the axis?

Kunduz · Accepted Answer

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