Question

1. An athlete completes one round of a circular track of diameel
200 m in 40 s. What will be the distance covered and the
displacement at the end of 2 minutes 20 s?
traight​

Answer 1

Answer:

22km

Explanation:

Time is taken by an athlete to complete one round = 40 seconds. Distance covered = ?? Displacement = ?? Hence, the distance covered at the end of 2 min 20 seconds is 22000 m or 22 km.

Answer 2

Answer:

distance = 700π m ; displacement = 200 m

Explanation:

length of circular track = π*(diameter) = 200π

distance covered in 1 sec = 200π/40 = 5π

distance covered in 140 sec = 5π*140 = 700π m

displacement= final pos - initial pos

=diameter = 200 m