Question

An athlete completes one round of a circular track of radius R in 40 sec. What will be his displacement at the end of 2min 20sec

Answer 1

3.98 R put the value R it will be your answer

Answer 2

Hi friend,

Solution :- Total time duration in considaration = 2 min 20 sec = 140 sec

He complete one round in 40 sec.

So, in 40 sec he will be cover = 140/40 = 3.5 round.

After one round he will be on the opposite side of the starting point.

Hence, his displacment will be the diameter or 2R...i hope it helps you

================================

Mark me as a brainlist.