The bus, which is 5 m long, drove away from the stop and drove along a straight section of the road 100 m

The bus, which is 5 m long, drove away from the stop and drove along a straight section of the road 100 m. During this time, the passenger who entered the bus at the bus stop through one door moved to the other door. What is the module of movement of the passenger relative to the rear door of the bus and relative to the stop, if the passenger moved: a) from the rear door to the front; b) from the front door to the back?

Decision:
sa = s1 + s2 = 105 m
sb = s2 – s1 = 95 m (subject to the movement of the bus forward)
Answer: 105 m, 95 m