A cyclist goes once round a circular track of diameter 105 metre in 5 minutes. Calculate his speed.

Answer

1.1 m/s

Explanation

Here , diameter `= 105 m` , radius , `r = ( 105)/(2) m`
time taken , `t = 5 min = 5 xx 60 s= 300 s`, velocity , `v = ?`
From ` v = ( 2 pi r )/(t), v = 2 xx (22)/(7) xx ( 105)/( 2 xx 300) = 1.1 m//s`