Question #510

What is the ratio of angular speed of minute hand to hour hand of a watch?

Answer

In a standard watch, the watch face is composed of 12 hours and 60 minutes.


One revolution of the hour hand lasts 12 hours. Angular speed expressed in rpm of hour hand is : 



One revolution of the minute hand lasts 60 minutes, or 1 hour. Angular speed expressed in rpm of minute hand is : 



We can easily conclude the ratio of angular speed of the minute hand to the hour hand is  , or 12:1.



5 events in history
Answer by Alphonsio 12/22/2020 at 06:45:14 PM

In a standard watch, the watch face is composed of 12 hours and 60 minutes.


One revolution of the hour hand lasts 12 hours. Angular speed expressed in rpm of hour hand is : 



One revolution of the minute hand lasts 60 minutes, or 1 hour. Angular speed expressed in rpm of minute hand is : 



We can easily conclude the ratio of angular speed of the minute hand to the hour hand is  , or 12:1.



Answer by Alphonsio 12/22/2020 at 06:44:29 PM

In a standard watch, the watch face is composed of 12 hours and 60 minutes.


One revolution of the hour hand lasts 12 hours. Angular speed expressed in rpm of hour hand is :




One revolution of the minute hand lasts 60 minutes, or 1 hour. Angular speed expressed in rpm of minute hand is :




We can easily conclude the ratio of angular speed of the minute hand to the hour hand is  , or 12:1.



Answer by Alphonsio 12/22/2020 at 06:30:07 PM

In a standard watch, the watch face is composed of 12 hours and 60 minutes.


One revolution of the hour hand lasts 12 hours.

One revolution of the minute hand lasts 60 minutes, or 1 hour.


We can easily conclude the ratio of angular speed of the minute hand to the hour hand is  , or 12:1.

Answer by Alphonsio 12/22/2020 at 06:29:29 PM

In a standard watch, the watch face is composed of 12 hours and 60 minutes.


One revolution of the hour hand lasts 12 hours.

One revolution of the minute hand lasts 60 minutes, or 1 hour.


We can easily conclude the ratio of angular speed of the minute to the hour hand is  , or 12:1.

Question by Alphonsio 12/22/2020 at 06:22:03 PM
What is the ratio of angular speed of minute hand to hour hand of a watch?
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