A boy is cycling such that the wheels of the cycle are making 140 revolutions per minute. If the diameter of the wheel is 60 cm. Calculate the speed in km/hr
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circumference of wheel is = 60*22/7 (pi*d)
=188.57 cm
because boy cycling 140 revolution in one min
hence 140*60= 9400 cm or 94 meter
distance covered in one hr is 60 * 94 meter
= 5640/1000 or 5.64 km/ hr
=188.57 cm
because boy cycling 140 revolution in one min
hence 140*60= 9400 cm or 94 meter
distance covered in one hr is 60 * 94 meter
= 5640/1000 or 5.64 km/ hr
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