Question

an athlete completes one round of a circular track of diameter 42m in 20sec calculate the distance covered and displacement at the end of 50sec plzzz answer this question plzzzz

Answer 1

lets divide 50 sec-

10+20+20 follow me

$\pi$R+2$\pi$R+2$\pi$R

u will get, 330m as ur distance

now for displacement u very well know that after 40 sec athlete will cover 2 round .. so after more 10 sec he will be at juz opposite point,i.e, along diameter so displacement will be 42m only