Exercise 1 The following illustration shows a schematic illustration of a hard disk. The hard disk consists of a rotating platter that stores the data and a moving actuator arm that can read and write on this platter. Before the actuator can actually access any data, it first needs to position itself over the corresponding track and wait for the right sector to rotate under it. 5400 rpm Assume the drive rotates with 5400 rpm and the actuator arm can accelerate (and deceler- ate) with a constant rate of 50 g. We now want to access data on a track 1 cm apart from the current position of the actuator head. In what time range can we expect to read the data? For your calculations, you can use the following formulas for the gravitational acceleration g and the linear acceleration. g = 9.8 ms-2 d=at