Question

A wrist watch has three hands, (i) for second (ii) for miniute (iii) for hour each. Now calculate the anguler speed (in rad/s unit) for each hands.

Answer 1

Angular speed

= Angular displacement/time taken

Now,

Angular speed in a clock for,

Second hand = 2π/60

= π/30 rad/sec

Minute hand = 2π/3600

= π/1800 rad/sec

Hour hand = 2π/(3600 × 12)

= π/21600 rad/s

Answer 2

Answer:

Refer to attachment please.