How fast does the earth rotate in one minute?

How many minutes does the earth rotate in one minute of time?

• Answer:

  The earth rotates 360 degrees in 24 hours, so in one hour it rotates 15 degrees. (If you look at a map of time zones you will see the time zones divided into 15 degree segments). One hour is 60 minutes, so in one minute of time the earth rotates 15/60 degree. Now a degree of longitude is 60 minutes, so in one minute of time, the earth rotates by 15/60 times 60 minutes, ie 15 minutes of longitude. The earth rotates 1 degree every 4 minutes