Question

an athlete completes one round of a circular track of diameter 200 metre and 30 second. find number 1. the distance travelled by the athlete and 2. the magnitude of the displacement of the athlete at the end of 30 seconds ​

Answer 1

Answer:

Explanation:

Radius of the track=100m

(1) distance travelled by the athlete=2*pi*r

  =2*3.14*100

  =2*314

  =628m

(2)at the end of 30 sec the athlete completes a round and hence comes back to the starting point and hance the displacement is 0m

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