Help on word problem? A plane is sitting on a runway?

A plane is sitting on a runway, awaiting takeoff. On an adjacent parallel runway, another plane lands and pes the stationary plane at a speed of 59 m/s. The arriving plane has a length of 40 m. By looking out the window (very narrow), a penger on the stationary plane can see the moving plane. For how long a time is the moving plane visible? _____s