Randall D. Knight — Kinematics in One Dimension: Problem Problem_60

You are 9.0 m from the door of your bus, behind the bus, when it pulls away with an acceleration of \(1.0\text{ m/s}^2\). You instantly start running toward the still-open door at \(4.5\text{ m/s}\). a. How long does it take for you to reach the open door and jump in? b. What is the maximum time you can wait before starting to run and still catch the bus?