SOLUTION: A wheel on a remote control car has a radius 2 inches.The wheels​ on the toy car are revolving at a rate of 14 revolutions per second. How fast is the toy car moving in miles per

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Question 1181334: A wheel on a remote control car has a radius 2 inches.The wheels​ on the toy car are revolving at a rate of 14 revolutions per second. How fast is the toy car moving in miles per hour? Show your work
Found 2 solutions by ikleyn, Boreal:
Answer by ikleyn(52780) About Me  (Show Source):
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
2 inches radius =4π inches per revolution.
4π inches/revolution*14 rev/sec*3600/sec/hr=633345.079 inches/hr
there are 63,360 inches per mile. Therefore, if one divides by inches/mile the units are miles/hr.
so it is traveling at 9.996 mph or 10 mph