Question

A piece of data on the edge of a performance hard drive platter in a computer moves at about 1319

inches per second. Convert this rate to miles per hour.

Answer 1

74.94 miles per hour

Explanation:

We simply need to convert "inches per second" to "miles per hour"

We would need to know few of these:

1 mile = 5280 feet

1 feet = 12 inches

and

60 seconds = 1 minute

60 minutes = 1 hour

We setup few proportions and cancel units and multiply/divide the numbers to arrive at our answer (shown below):

`(1319Inches)/(Second)*(1Feet)/(12Inches)*(1Mile)/(5280Feet)*(60Second)/(1Minute)*(60Minute)/(1Hour)\\=(1319*60*60)/(12*5280)\\=(4748400)/(63360)\\=74.94`

So , rounded to 2 decimal places, it is 74.94 miles per hour