SOLUTION: A motor cycle is moving with the speed of 47.52 km/hr and the radius of the wheel of the motorcycle is 21 cms. Calculate the approximate no of revolutions made by the wheel in one

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A motor cycle is moving with the speed of 47.52 km/hr and the radius of the wheel of the motorcycle is 21 cms. Calculate the approximate no of revolutions made by the wheel in one       Log On


   

Question 825032: A motor cycle is moving with the speed of 47.52 km/hr and the radius of the wheel of the motorcycle is 21 cms. Calculate the approximate no of revolutions made by the wheel in one minute.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A motor cycle is moving with the speed of 47.52 km/hr and the radius of the wheel of the motorcycle is 21 cms.
Calculate the approximate no of revolutions made by the wheel in one minute.
:
Find the circumference in meters
c = %282%2Api%2A21%29%2F100
c = 1.32 meters
:
Find the no. of meters traveled in 1 min
d = %2847.52%2A1000%29%2F60
d = 792 meters in 1 min
:
Find the no. of rev this is
792%2F1.32 = 600 rpm