a wheel of a bus has a diameter of 90 cm.the wheel complete 315 revolution per minute .find the speed of bus in km/ h
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radius,r=45cm
in 1 min distance traveled=315*2πr
=(315*2*22*45)/7
=89100cm=891m
in 1 hour(60min)=891*60m=53460m=53.460km
speed =53.46 km/hr
in 1 min distance traveled=315*2πr
=(315*2*22*45)/7
=89100cm=891m
in 1 hour(60min)=891*60m=53460m=53.460km
speed =53.46 km/hr
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