Question

A clock has a second hand that is 8 inches in length. What is the linear velocity of the second hand?

Answer 1

6π inches/min

Explanation:

he tip of the second hand makes a complete circle in

60 sec, or 1min

The length of this circle is the circumference, C

C=2πr

Given: r=8 in

C= 2π×8 =16π

C= 16π

The linear velocity is 6π/1 = 6π inches/min