A cyclist moving an a circular track of radius ` 50 m` completes one revolution in ` 2 minutes`. What is his (i) distance covered (ii) dislacement (iii) average speed (iv) average velocity, in one full revolution.

Explanation

Here ` r= 50 m`, t=2 min
(i) Distance coverd in one revoltion (i.e. in 2 minutes )
` = 2 pi r = 2 xx 50 = 100 pi m` ltbRgt (ii) Displacement in one revolutin ` =0` (i.e. in 2 minutes )
(iii) Average speed in one revolutin ` = 0/2 =0` .