Sunday, November 18, 2007

HW 24: Up, Down, Splat!

Melissa's science class is having a contest. The contest is to see who can build a container that will keep an egg from breaking when dropped from the school window.

Melissa is quite confident about her contraption. She leans out the window, which is 25 feet off the ground, and hurls her egg container straight up in the air with an initial velocity of 35 feet per second. (Consider velocity upward to be positive.)

Assume that the egg container's velocity is affected by gravity in the usual way. That is, the velocity decreases by 32 feet per second for each second the egg container travels.

1. How long does it take for the egg container to hit the ground?

2. At what speed does the egg container hit the ground?


Ms. Goldwater said...

Dear Mr. Marti,

My name is Charlotte and I have a bone to pick with you Mr. Marti- or should I say Mr. Farti.

I am barely able to type this, because I am vertically challenged. Luckily I use my good ole trusty coat hanger to type each key.

You should be ashamed of yourself, signing your students' homework with your sloppy little signature. If you were a real teacher, you'd put a nice juicy stamp on the homework. Duh.

You are fired.

Sincerely Yours,

Ms. Goldwater

Dr. Fraynd said...