Asked by RAMARAJU
Rotations per Minute . How many rotations per minute must a wheel of diameter 1.5 m make to
achieve a speed of 45 kmph ? (Approx pi= 3 ).
achieve a speed of 45 kmph ? (Approx pi= 3 ).
Answers
Answered by
Steve
45km/hr * 1hr/60min * 1rev/(1.5π m) * 1000m/km = 159rev/min
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