PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
Two trains, A and B, start simultaneously from the opposite ends of a straight track that is 50km long and move towards each other on parallel lines.
• Train A travels at a uniform speed of 36kmh−1.
• Train B travels at a uniform speed of 54kmh−1.
Use this information to answer the following:
(i) Calculate the time after the start at which the two trains meet.
(ii) Find the distance of the meeting point from the starting point of train A.
(iii) After crossing, both trains continue with their respective speeds. Determine the additional time taken by train B to reach the station from which train A had started.