the radius of the wheel of the bus is 70 cm,how many revolutions per minute must a wheel make in order to move at aspeed of 66 km/h?
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in 1 revolution it covers 2*
*r=2*22/7*70=440cm
required speed is 66 km/hr
per minute speed= 66/60km/min=11/10km/hr
1km=1000*100cm
11/10km=1000*100*11/10=110000 cm
now
to this much distance in minute the bus wheel should take
110000/440 revolutions
1000/4=250revolutions.
required speed is 66 km/hr
per minute speed= 66/60km/min=11/10km/hr
1km=1000*100cm
11/10km=1000*100*11/10=110000 cm
now
to this much distance in minute the bus wheel should take
110000/440 revolutions
1000/4=250revolutions.
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