Recent content by JON123

I'm working on my senior project. The project I'm working on can be modeled similarly to a gun. I am having some problems finding a way to model pressure as a function of time as a weight/mass moves down a tube after the combustion of black-powder. Any direction in this would be great.

Homework Statement Picture is attached Homework Equations The Attempt at a Solution I feel like I am right and the computer is wrong, but I just wanted to check here first. I attached a picture of the problem and my answer. This is how I solved the problem: Fz=750sin(45)=530.33N...

I figured out how to solve the problem, and i see what i was doing wrong. I came up with the 500cos(30) by going at the problem backwards because I had found out the answer from someone, but i see that's not the right way to get the answer. I solved it by using the formulas: Fx=Fcos(alpha)...

Thanks for the reply. The force is acting in the negative direction because it's 60 degrees from the negative z-axis, meaning that it's 30 degrees bellow the x&y-axis. And I just had a typo on the third line, it was supposed to be k=-500cos(60)=-250 giving me the z-component. I did figure out...

I am having trouble solving this problem, I also have it attached: http://i160.photobucket.com/albums/t193/John123321_bucket/Capture.png Here is a short version of how I got my answers, but it says it’s wrong: X=500cos(30)=433N i= 433sin(45)=306.2 j=-433cos(45)=-306.0...