Question

A race car makes one lap around a track of radius 60 m in 6 s. What is the average velocity of the car as it goes around the circular track? Round your answer to one decimal place.

Answer 1

Given:

$r=60\:\rm m$

$T=6\:\rm s$

The average velocity of the car

$$v=\frac{l}{t}=\frac{2\pi r}{T}$$

$$v=\frac{2\pi *60}{6}=20\pi\:\rm m/s=62.8\: m/s$$