Classical Mechanics
# 1D Kinematics

$54$ seconds for him to leave the station. If he takes the working escalator while standing still, it takes $28$ seconds for him to leave the station. If this man walks while taking the working escalator, approximately how long will it take for him to leave the station?

In a subway station, there are two escalators going upwards toward the exit. One is broken while the other one is working. If a man walks up the broken escalator, it takesAssume that the escalator and man are both move with constant respective velocities.

$2000\text{ km}.$ One spaceship accelerates uniformly at a rate of $40 \text{ km/s}^2$, and the second one moves with a constant acceleration of $10 \text{ km/s}^2.$ How many seconds earlier will the first spaceship reach its destination?

Two spaceships initially at rest take off to travel a distance of