Question

A bus is moving at 5.0 m/s when a passenger walks forward at 1.5 m/s relative to the bus. How fast is this passenger moving as seen and measured by (a) a person waiting at the bus stop and (b) the driver of the bus?

Answer 1

(a)

$$5.0+1.5=6.5\:\rm m/s$$

(b)

$$1.5\:\rm m/s$$