Wheel

How many times turns the wheel of a passenger car in one second if the vehicle runs at speed 52 km/h? Wheel diameter is d = 60 cm.

Final Answer:

n =  7.663

Step-by-step explanation:

v=52 km/h→ m/s=52:3.6  m/s=14.44444 m/s d=60 cm→ m=60:100  m=0.6 m t=1 s  s=v⋅ t=14.4444⋅ 1=9130​=1494​≐14.4444 m o=π⋅ d=3.1416⋅ 0.6≐1.885 m  n=s/o=14.4444/1.885=7.663

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