Question

a person moving in a circular track of radius 50m completes one revolution in 4 minutes . find average speed and velocity .

Answer 1

Radius = 50 cm = 0.5 m
time = 4 min = 240 s

Average speed = total distance travelled/ total time taken
$$\begin{gathered} Avgspeed=\frac{2\pi r}{t}=0.01m/s \\ Avgvelocity=displacement/totaltimetaken=0 \\ Asinitialandfinalpointsaresame. \end{gathered}$$