Answer on Mechanics | Relativity Question for obert
Why is it that a bus travelling at 100km/hr overtakes a car travelling at 100km/hr on the same road
This can happen due to two main reasons. First, a speedometer of one of the vehicles (or both) can be calibrated improperly. Second, each vehicle has specific tire size. If the tyres of different diameter are installed, the speedometer will give wrong reading as well. Therefore, one of the vehicles (or both) might have improper tires installed.