Question

Minute hand of large clock is 2m long, What is its angular speed approximately.
(a) 1x10^-3 rad/s
(b)1.7x10^-3rad/s.
(c) 3x10^-3rad/s
(correct answer is b why?)
​

Answer 1

Answer:

speed =w*r

r=2m

w=2*pi/60=pi/30

speed=pi/30 * 2

=1.7*10^-3

Answer 2

Answer:

1.7*10^-3 rad/s

Explanation:

v=rw
r=2m
w=pie/60*60=pie/3600
v=2*pie/3600
v=pie/1800=1.7*10^-3rad/s