Question

The radius of a wheel is0.25m find the number of revolution it will make to travel a distance of 11kms.

Answer 1

1km=1000m
So 11km=11000m

C=2pie r
=2×22/7×0.25
=1.57m

Revolution=11000/1.57=7006.36

Answer 2

comments are welcome

So, the radius of the wheel is given as 0.25m
perimeter of the wheel will be 2πr = 2x3.14x0.25 = 1.57m

One complete revolution will cover one complete perimeter
so number of revolutions in 11kms i.e 11000m
will be = (11000/1.57) = 7006.36

So, 7006.36 number of times the wheel will rotate.

answered :-)