Question

The angular speed of the minute hand of a clock in degrees per second is

Answer 1

The minute hand of clock covers a complete round of clock in 1 hour.And 1 complete revolution=360°
so angular speed=360°/(60 x60)=0.1°/s

Answer 2

Speed is 0.1° $second^-^1$

Explanation:

In an analog clock, there are 12 divisions for an hour and each one is divided into 5 (for minutes and seconds).  

• Thus there are 60 divisions in an analog clock.  

If we consider that clock as a circle then each minute (or second) covers $\frac {360}{60}$ = 6°.

• Since minute hand moves 1 division (= 6°) per minute it's angular velocity is $\frac {6}{minute}$.  

• We know that 1 minute is equal to 60 seconds.  

• If we replace 1 minute in that velocity with 1 second we get,  

Angular Velocity = $\frac {6}{60\ second}$

= $\frac {1}{10\ second}$

= 0.1° $second^-^1$