How many revolutions will a wheel make in travelling 2km, if its diameter is 700mm?

First, we need to convert the diameter from millimeters to meters:

700mm = 0.7m

Next, we can use the formula for the circumference of a circle:

Circumference = π x diameter

C = π x 0.7m

C ≈ 2.199m

So, for each revolution of the wheel, it will travel a distance of approximately 2.199 meters.

To find out how many revolutions the wheel will make in traveling 2km (2000m), we can divide the distance traveled by the distance per revolution:

Number of revolutions = distance traveled ÷ distance per revolution

Number of revolutions = 2000m ÷ 2.199m/rev

Number of revolutions ≈ 910.87

Therefore, the wheel will make approximately 910.87 revolutions in traveling 2km.