Question

Calculate the speed of the tip of the sec hand in a clock of length 1.5cm

Answer 1

Given, R = 1.5 cm = 1.5 * $10^{-2}$ m
Velocity = Radius * $\omega$
Since, second hand takes 60 seconds to complete one rotation i.e. to cover 2$\pi$
V= 1.5 * $10^{-2}*(2π-0)/60 ; V=(3*10^{-2}*π)/60$