Projectile Questionairs?

Question

1)A rifle fires a bullet with a speed of 250 m/s at an angle of 37o above the horizontal. (a) Relative to the launch height, what height does the bullet reach? (b) How long is the bullet in the air? (c) What is the horizontal range?

2)A stone thrown of a bridge 20 m above a river has an initial velocity of 12 m/s at an angle of 45o above the horizontal (a) what is the range of the stone? (b) At what velocities the stone strike the water?

3)A ball with a horizontal speed of 1.5 m/s rolls off a bench 2.0 m high. (a) How long will it take the ball to reach the floor? (b) How far from the point on the floor directly below the edge of the bench will the ball land?

4)A hunter fires a gun and shoots bullets with muzzle velocity of 400 m/s. At what angle from the horizontal must he aim his gun so that he will hit a bird on a tree 40 m away and 15 m above him?

Answer 1

Allen, I think you are poking fun at us dumb rednecks- I believe our collective answer would be  HUH!!!

  I enjoy a good sense of humor though, come back and visit anytime!

Answer 2

put this in the maths section, you'll get 10 answers

are we ignoring air resistance?

Answer 3

It is not possible to give you an accurate answer because there are more variables than you listed.

Answer 4

LOL

Answer 5

Interesting questions.  From a physics take home test?  I will not help you cheat but let me recommend a book to you that will be of considerable help.

"Understanding Firearm Ballistics"   by Robert A. Rinker

Answer 6

Do your own homework. Do mommy and daddy know you are cheating

Answer 7

Not enough info. You forgot that size matters.

Answer 8

WHO YOU BE, MAN?

Answer 9

I second the notion that you should do your own homework.