What is the rotational speed of the hour hand on a clock?



-----rev/s

1rev/12h * 1h/3600s. = 0.00002315 = 2.315*10^-5 rev/s.

Well, the rotational speed of the hour hand on a clock is one revolution per twelve hours. So, if we want to get technical, it would be (1/12) revolutions per hour, or in other words, a snail could outpace it in a race.

To determine the rotational speed of the hour hand on a clock, we need to understand some key information about its movement. The hour hand completes a full rotation every 12 hours, representing a total of 360 degrees. We can then use this information to calculate its rotational speed.

To find the rotational speed in revolutions per second (rev/s), we need to convert the time unit from hours to seconds. Since there are 60 seconds in a minute and 60 minutes in an hour, this means there are 60 * 60 = 3,600 seconds in an hour.

Now, we can calculate the rotational speed. Since the hour hand completes one rotation every 12 hours, we divide 360 degrees by 12 hours to find the degree per hour measurement: 360 degrees / 12 hours = 30 degrees per hour.

To convert this measurement to degrees per second, we divide by the number of seconds in an hour: 30 degrees per hour / 3,600 seconds = 0.00833 degrees per second.

To convert this to revolutions per second, we divide the minute measurement by 360 degrees (the number of degrees in a full rotation): 0.00833 degrees per second / 360 degrees = 0.0000231 revolutions per second (approximately).

Therefore, the rotational speed of the hour hand on a clock is approximately 0.0000231 rev/s.

Is it 1 revolution = 12 hours?