# I just don't get it

I'm a junior in hs & I'm in my 3rd week of Honor Physics & I'm struggling already. We're currently working on a chapter focusing on Kinematics in One Dimension & we're being tested on Thursday. Not only am I worried about the test, but I have a huge packet of problems due Thursday as well.

I think all the problems are pretty basic, but I just don't know how to start them. The problem that I'm working with right now says: A plane is sitting on a runway, awaiting takeoff. On an adjacent parallel runway, another plane lands and passes the stationary plane at a speed of 45 m/s. The arriving plane has a length of 36 m. By looking out of a window (very narrow), a passenger on the stationary plane can see the moving plane. For how long a time is the moving plane visible?

All I have down on my paper is a drawing of two planes and the numbers listed in that problem. If anyone could tell me where to go next, I'd appreciate it!

Thanks!
Gwyneth:)

Related Introductory Physics Homework Help News on Phys.org
If the person viewing out the window is stationary relative to the runway, and the landing plane is at a constant velocity of 45m/s, try to figure out what exactly is affecting the time. In this case the only thing moving is the other plane at 45m/s. If the plane is 36m, and it passes at 45m/s you should be able to calculate this very easily.

I made a lot of assumptions because the questoin did not specify on acceleration, etc.

HallsofIvy