Question

Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it does not rotate, but it contains gears to count the number of wheel revolutions-it then calculates the distance traveled. If the wheel has a 1.09 m diameter and goes through 110,000 rotations, how many kilometers should the odometer read? X km

Answer 1

The odometer of semi-trailer will read distance travelled which can be calculated by finding the product of circumference and no of rotations.