54 the diameter of the wheel of a bus is 140 cm. How many revolution, per minute must the wheel make in order to keep a speed of 66 kmph ?
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Answer:
Step-by-step explanation:
radious of wheel= 140 /2=70
2.22\7.70=4840cm
distance=speed.time
4840*60\66=4401.81 revoultion should be
maintained to keep 66 kmph
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