Question

an athlete completes one round of a circular track of radius R in 80 sec what will be his displacement at the end of 4min 60 sec?​

Answer 1

Explanation:

An athlete complete one round of circular track of radius R in 40 sec.

4 min 60 sec=300 sec

He had completed one round means he will be at o oposite point of straight path

Displacement= diameter=0.75

i think so