SOLUTION: A car has wheels with a radius if 42.0 cm. If the car is travelling at a speed of 90.0 km/h, what is the frequency of rotation of its wheels?

Question 956578: A car has wheels with a radius if 42.0 cm. If the car is travelling at a speed of 90.0 km/h, what is the frequency of rotation of its wheels?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
A car has wheels with a radius if 42.0 cm.
Find the circumference of the the wheel

C = 263.89 cm
convert to meters
263.89/100 = 2.6389 meters
:
If the car is travelling at a speed of 90.0 km/h, what is the frequency of rotation of its wheels?
Find the speed in meters/sec
= 25 m/sec
:
= 9.4736 rev/sec
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