Sydney Shaffer

2023-03-08

The speed of the tip of a second hand of length 5 cm of a clock is _________ m/s.

Centarxwm

Step 1. Calculating the clock's circumference
Circumference of the clock $=2\pi r=2×\frac{22}{7}×5=31.41cm$
(when the radius is 5 cm)
It has to cover the circumference in 60 seconds.
Step 2 . Calculating speed of second hand
Hence speed $=\left(\frac{Distance}{Time}\right)=\frac{31.41}{60}=0.52cm/s=0.0052m/s.$

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