an athlete completes one round of a circular track of diametre 50 m in

1.	an athlete completes one round of a circular track of diametre 50 m in 50 s. What will be the distance covered and displacement in 4 min?
Answer» Answer: GIVEN : Diameter of the circular track D=2R=200 m Time t=2 minutes 20 s =140 s As the athlete COMPLETES one round in 40 seconds, thus he will be at point B after 140 seconds by covering three and HALF rounds. ∴ Displacement of the athlete s′=2R=200 m Distance covered d=3.5×(2πR) d=3.5×722×200=2200 m

an athlete completes one round of a circular track of diametre 50 m in 50 s. What will be the distance covered and displacement in 4 min?

Answer»

Answer:

GIVEN : Diameter of the circular track D=2R=200 m

Time t=2 minutes 20 s =140 s

As the athlete COMPLETES one round in 40 seconds, thus he will be at point B after 140 seconds by covering three and HALF rounds.

∴ Displacement of the athlete s′=2R=200 m

Distance covered d=3.5×(2πR)

d=3.5×722×200=2200 m

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an athlete completes one round of a circular track of diametre 50 m in 50 s. What will be the distance covered and displacement in 4 min?​

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an athlete completes one round of a circular track of diametre 50 m in 50 s. What will be the distance covered and displacement in 4 min?