To what angle will the minute hand of the watch turn if the second hand has made five revolutions?
| December 29, 2020 | education
To what angle will the minute hand of the watch turn if the second hand has made five revolutions? What is the speed of the second hand?
Period of rotation of the second hand = 60 sec.
Frequency = 1/60
While the second hand makes five revolutions, the time will pass 60 * 5 = 300 seconds
300 sec = 5 minutes.
15 minutes = 90 degrees, therefore 5 minutes = 30 degrees
Answer: 30 degrees, 1/60 Hz
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