the diameter of a wheel of a bus is 180cm whick makes 630 revoltions per minute determine speed in km/h
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distance covered in 1 revolution=circumference of the wheel
=pi×diameter
dist. in 1 min.=630×circumference
(no. of revol. × path in 1 revol.)
this gives the speed in cms per min
u can convert it into km/h by multiplying with 60/1000
=pi×diameter
dist. in 1 min.=630×circumference
(no. of revol. × path in 1 revol.)
this gives the speed in cms per min
u can convert it into km/h by multiplying with 60/1000
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