please help me by solving this problem
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Here the answer of the question
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Answered by
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Explanation:
distance covered by the athelete is the circumference of the circle
circumference= πd= 200m x π
time taken = 40sec.
it is given that the athelete completes one full round. hence the displacement ( difference between initial and final point) is 0
we know that
Speed=distance/time. ------------equation.1
speed = 200π / 40
=5π m/sec
time given= 2min 20 sec
= 140 seconds
by equation 1
5 m/sec= distance/ 140 sec
distance= 5π x 140
= 700π metres
the distance travelled by the athlete at the end of 2min 20 sec is 700π metres while the displacement is zero.
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