Question

an athelete completes a round of a circular track of diameter 200 m in 40 secs.What will be the distance at the end of 2 min 20 secs. Find also the displacement.....

Answer 1

Answer:

Explanation:

2min 20s = 140 s

40*3 + 20 = 140

perimeter = 2*3.14*100 = 628 m

so displacement is distance covered in last 20 sec = 628/2 =314m

distance = 628 *3 + 314 = 2198