The diameter of a wheel on Harry’s bicycle is 0.65 m.
Harry cycles 1000 metres.
(b) Calculate the number of turns the wheel makes.
Each revolution that the wheel makes it will travel 2pi (diameter / 2) = pi*diameter = .65*pi
So.....the number of revolutions turned in 1000m =
1000 / [ pi * .65 ] ≈ 489.7 revs
