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.

Correct 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=149414.4444 m o=π d=3.1416 0.61.885 m  n=s/o=14.4444/1.885=7.663



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