# Differential Equation Issue

1. Oct 18, 2009

### Wildcat04

1. The problem statement, all variables and given/known data

I need to integrate this problem, I am not sure what it is but I am having trouble doing this simple problem and coming up with the right answer. Its been awhile since I had diff eq..

Solve for w as a function of x

0 = g + $$\upsilon$$ (d2w / dx2)

g, $$\upsilon$$ = constant

2. Relevant equations

Problem Solution:

w = (g/$$\upsilon$$)(bx - x2/2)

3. The attempt at a solution

I am assuming that I need to move stuff to each side and complete the double integrals and solve for w

something along these lines:

-g dx2 = $$\nu$$ d2w

I would love it if someone could give me a nudge.

2. Oct 18, 2009

### Dick

It's really easy. You've got w''(x)=(-g/v). Just integrate both sides with respect to x twice. Don't forget the constants of integration. You should then realize the problem solution isn't the most general one.

3. Oct 18, 2009

### Wildcat04

Thank you Dick, I knew that I was making this stupid problem much harder then it should be put I just couldnt wrap my head around it.