Question

The sweeping second hand on your wall clock is 24cm long.

a)What is the rotational speed of the second hand?

b)Find the translational speed of the tip of the second hand.

c)Find the rotational acceleration of the second hand.

Answer 1

a) w= (2pi rad)/60 sec = .105rad/s
b) v= wr = .105*24 = 2.52cm/s
c) a= 0

Answer 2

a) w= (2pi rad)/60 sec = .105rad/s
b) v= wr = .105*24 = 2.52cm/s
c) a= 0 rad/s^2