A person is cycling around a circular park of radius 140 m. He takes 3 mins to complete 1 round. Find the speed in (i) m/s (ii) km/h
Answers
Answered by
0
Answer:
speed is equal to distance upon time
Step-by-step explanation:
therefore;
140/3 into 60
=,2800m/s
Answered by
1
Step-by-step explanation:
total distance covered = perimeter of the circle = 2πr = 2 x 22/7 x 140 = 880m
3min = 180 sec
speed = d/t = 880/180 = 4.88m/sec (approximately)
to convert m/s into km/hr we should multiply it by 18/5
4 x 18/5= 17.6 km/hr
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