Question

A car runs at a constant speed on a circular track of radius 200 m, taking 62.8 s on each lap. Find the average velocity and average speed on each lap.

Answer 1

Given,

$RadiusR=200mTimetakenineachlapt=62.6s$

Total distance travel in each lap $s=2\pi R=2\times 3.14\times 200m$

Average speed$=\frac{\text{Total distance travel in each lap}}{\text{Time in each lap}}=$ $\frac{200\times 2\times 3.14}{62.8}=20m/s$

Displacement in each laps $=0$

Average velocity $=\frac{\text{Total displacement}}{\text{Time in each lap}}=$$0$