An athlete
completes one ground of a circular track of diameter 100 m in 20 second. find his distance covered after 1 min 10 seconds
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Answer:
Explanation:
Circumference ( distance) of the track :
= 2π r
= 2 × 22/7 × 50
= 2200/7
time= 20 secs
speed = distance/ time
speed = 2200/7 / 20
= 2200/7 × 1/20
= 110/7 m/s
distance = speed × time
= 110/7 × 70 ( as 1 min 10 secs = 70 secs)
distance = 1100 meters
anupreet54:
is it correct ??
Yes! I have written the same thing in my notebook and its correct!
Thanks a lot
You're welcome!
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