When driving, the bus travels a distance of 120 km in two hours. How fast is the bus moving?

Given:

t = 2 hours = 7200 seconds – time interval;

S = 120 kilometers = 120,000 meters – the distance covered by the bus during the time interval t.

It is required to determine v (m / s) – the speed of the bus.

To determine the speed of a bus, you need to use the following relationship:

S = v * t, hence:

v = S / v = 120000/7200 = 1200/72 = 16.7 m / s (60 km / h).

Answer: the speed of the bus is 16.7 m / s (60 kilometers per hour).