Question

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

Answer 1

Answer:

700m

Explanation:

2 min 20s = 2×60+20=120+20

=140s

140/40=3.5

200×3.5

700m

Answer 2

Answer:

2 minutes 20 s = 120s + 20s = 140s

distance covered = circumference of the circular track

no. of rounds = 140s/40s = 3.5

circumference = 2πr

                         = 2×3.14×200/2

                           = 628 m

total distance travelled = 628m × 3.5

                                       = 2200 m

displacement = diameter = 200m