A wall clock has a second hand 22.0 cmcm long. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Fast car, flat curve. Part A What is the radial acceleration of the tip of this hand

The tip of the second hand moves on a circular path having radius equal to. 22 m. Redial acceleration is given by the expression

ω²R where ω is angular velocity and R is radius of the circular path.

angular velocity of second hand = 2π / T where T is time period of circular motion. For second hand it is 60 s.

ω = 2π / T

= 2π / 60

=.1047

angular acceleration =.1047² x. 22

= 2.41 x 10⁻³ rad / s².