A book of unknown mass is on a bookshelf 2.5 meters above the ground. If the book falls off the shelf how fast will the book be traveling just before it hits the floor?
If you just give me the answer i will figure it out, but if you post the equation used and the answer you will get best answer...
2006-09-23 13:18:45 · 3 answers · asked by Anonymous in Education & Reference ➔ Homework Help
ok...i need a number value here...
2006-09-23 13:26:11 · update #1
2.5 meters per second
2006-09-23 13:32:14 · answer #1 · answered by bartender101dd 2 · 0⤊ 0⤋
The "unknown mass" bit is a red herring. Unless the book is so light that air resistance is a factor, it will fall at the same speed as a rock, as a lump of lead, as a brick. Remember Galileo and that tower? Same thing.
2006-09-23 13:24:49 · answer #2 · answered by Ralfcoder 7 · 0⤊ 0⤋
My physics is a bit rusty, but I know objects fall at a certain speed. Is it 6.25 meters per second? Whatever that number is, you should be able to use it to get your answer.
2006-09-23 13:36:09 · answer #3 · answered by Anonymous · 0⤊ 0⤋