Ok, we were doing a lab yesterday in physics class, and we had to find the velocity of a bullet hitting a block with a hole in it's center, and is hung... when the bullet hit the block, it made a 18 degree angle... my teacher gave us a formula for finding the velocity of the block and we got the...
Ok, I failed the first semester of my physics class, but my teacher says that if we take the AP Physics B exam and get a 3 or better, he'll give us an A. Anyone suggest any books, or any tips on how to start? I'm starting from scrap, because I really don't know anything.
It's ok if no one can or wants to help coz they don't believe, it's just homework, he doesn't care about it anyway, all he cares about are the tests. I just wanted to understand for the next test.
Actually, no one has an A in that class. Since he is also an AP teacher, he expects us to know, but we're only actually in honors. He just gives out these labs and problems, then after every week, we get a test.
I really don't have any idea, my physics teacher just gives out problems for homework, without even teaching. Can you anyone tell what topic these problems are covered on, that way I might get an idea.
I really don't understand my physics class... Can anyone help me on these questions?
1. A ball falls from rest from a height of 490m.
a. How long does is remain in the air?
b. If the ball has a horizontal veolcity of 200m/s when it begins to fall, what horizontal displacement will it have...