The wheel of motor cycle is of radius 35cm. How many revolution must the wheel make so as to keep a speed of 66km/hr
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Answer:
30,000 in 1 hr (or) 5000 in 1 min
Step-by-step explanation:
In one revolution it covers distance= its circumference.
C=2πr
==>C=2*22/7*35=2*22*5=22*10=220cm
in one hour, if it is to move 66 km,
66 km = 6600000 cm
6600000/220=660000/22=30000
==>the wheel must make 30,000 revolutions in one hour.
in one minute it must make 30000/60=3000/6=500
==>the wheel must make 500 revolutions in one minute.
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