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In a long distance race, the …

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In a long distance race, the athletes were expected to take four rounds of the track such that the line of finish was same as the track was 200 m. (i) What is the total distance to be covered by the athletes? (ii) What is the displacement of the athletes when they touch the finish line?

Posted by #Ķáŕáń J@@Ť? 4 years, 3 months ago

CBSE > Class 09 > Science

1 answers

Gaurav Seth 4 years, 3 months ago

Given,
Length of the track = 200 m
Expected rounds athlete are supposed to take = 4

(a) Total distance covered by each athlete = 4 × 200 = 800 m.

(b) As the line of finish is the same as the line of start, so displacement of each athlete = 0.

(c) Motion of the athletes is non-uniform as the speed of the athlete will be changing at each point.

(d) From parts (a) and (b), the distance and displacement of an athlete are not equal at the end of the race.

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