Your hard drive can spin up to 7500 rpm from rest in 5 s. If your hard drive's
mass is 40 g and its radius is 2.5 in, what is the force applied to the drive if the force is
applied at a point 0.25 in from the center? Assume the drive is a solid, uniform disk with
I = (1/2)mr2
, and assume the force is applied tangentially. (1 kg = 1000 g, 1 in = 2.54 cm,
1 m = 100 cm)
1 answer