Question

an athletic 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 mins 20 S? ​

Answer 1

Answer:

d=200m

r=d/2=100m

∴Circumference=2πr

given,the athletic completes 1 round of d=200m  in 40 s.

⇒40 s=200πm

∴1 s=200π/40m

∵2 min 40 s =140 s

∴140 s =200×22×140/40×7

=2198m

∴distace =2198m

and displacement =200m

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Answer 2

AnSwer :

[Refer to the attached photos.]

◑ The distance covered by an athlete is 2200 m and the displacement at the end of 2 minutes 20 seconds is 200 m.

Additional Information :

※ The distance travelled by an object is the length of the actual path traversed by the object during motion.

※ The displacement of an object in the motion is the shortest distance between the initial position and final position of the object.

※ Distance is a scalar quantity.

※ Displacement is a vector quantity.

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