Question

A man is walking on a circular track of radius 7m. He takes 1 minute to complete half the circle. What is his speed and velocity?

Answer 1

Answer:

11/30, 7/30

Explanation:

distance covered in one minute=half of the perimeter= pi*r=22/7*7=22

(pi=22/7)

displacement=diameter of the circle=2*7=14

speed=distance /time=22/60 m/s=11/30 m/s

velocity =displacement /time=14/60=7/30 m/s...

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Answer 2

Answer:

distance of circular track= 2*22/7*7= 44m

speed= distance/time

man walk half of the track

so,44/2= 22/60= 0.36m/s

velocity= displacement/time

7/60= 0.1m/s2