How long will a man take to make a round of a circular field of radius 21m cycling at the speed of 8km per hour
Answers
Answered by
4
Circumference = 2*pi*r = 2*22/7*21 = 132m
So, distance = 132m= 132/1000= 0.132 km
Speed = 8km/h
Time = Distance /speed = 0.132/8 = 0.0165 hrs
And, 0.0165 hrs = 0.0165*3600= 59.4 seconds
So, distance = 132m= 132/1000= 0.132 km
Speed = 8km/h
Time = Distance /speed = 0.132/8 = 0.0165 hrs
And, 0.0165 hrs = 0.0165*3600= 59.4 seconds
Answered by
1
[tex]Radius of circle =20m
Speed = 8 km/h =8*(1000/3600) = 2.222 m/s
perimeter of circle = 2 \pi r = 2 * (22/7) * 21 = 132 m
so Time taken = Distance /speed
Time taken =132/2.222
Tme taken = 59.406Second[/tex]
Similar questions