Question

A boy is cycling in such a way that the wheels of his bicycle are making 140 revolutions per minute. If the diamter of the wheel is 60 cm calculate the speed in km per hour

Answer 1

Answer:

Step-by-step explanation:

Distance = 140 revolutions × 60 as it is the diameter

= 2400×1000 to convert into km

=2400000

Speed = distance / time

Speed = 2400000/ 1×60

=2400000/60

= 6000km/h