Question

Two long trains of equal length 240 m are moving on parallel tracks in the same direction. Train a moves at constant speed 20 m/s and train b moves at constant speed 25 m/s. A person p stands inside train a at its front end. At the front end of train b is parallel with the rear end of train a. At this instant, the person p starts running towards the rear of train a at velocity 2.5 m/s relative to train a. The time instant when the rear end of train b crosses the person is :

Answer 1

Answer:

2 seconds

Explanation:

you should calculate yourself