A car runs at a constant speed on a circulat track of radius ` 100 m`. Taking `62.8 s` for every circular lap. The average velocity and average speed for each circular lap respectively are :

Options

A. 0, 0
B. 0, 10 m/s
C. 10 m/s, 10 m/s
D. 10 m/s, 0

Answer

B

Explanation

`"Average velocity"=(Displacement)/("time taken")=(0)/(62.8)=0`
`"Average speed" =("Distance")/("Time taken")=(2pir)/(T)`
`=((2pi)(100))/((62.8))=10ms^(-1)`