# Homework 7.3

## 15 thoughts on “Homework 7.3”

1. Lukas Karim Hessini says:

Are the conditions of q(0) = q(2L) = 0 the only boundary conditions we need to solve this problem?

1. Brie says:

Hey Lukas, there are other more useful boundary conditions that you could use such as the ones from the fixed at A and support at C

2. rvulich says:

Do we need to solve for the equivalent force in order to get the expressions?

1. Karsten Alexander Hilgarth says:

Yes, you can solve for Q by integrating the q expression with proper boundary limits

3. Glenn Russell Jones says:

Do we need to solve for the constants in the expressions?

1. Elizabeth Carol Foesch says:

Yes you need to solve for the constants.

4. Scott Jay Shelton says:

Are we supposed to solve in terms of q0?

1. Aaron Christophe Davis says:

Yes. The answer should be in terms of q0

Is it reasonable to assume that the reactions at either end of the beam would be equivalent?

1. Karsten Alexander Hilgarth says:

I would say you can't assume they are equivalent, but when using the fourth order method you only need Ma and Ay in you integration equations

6. Diego Phillip Fergus says:

When using the Integration Method, is it more beneficial to use definite integrals using boundary conditions and reaction forces, or using indefinite integrals and finding the constant of integration?

7. Karli Valencia says:

Is it necessary to show the Equilibrium step for this type of problem that uses 4th-order integration? Example 11.8 in the lecture book is very similar to this problem and it shows the Equilibrium step, but the resulting equations from that step are never used later to find the deflection curve.

8. Hannah Gagelin says:

What are the units of deflection? is it mm? m?

1. purdue_exclamation_mark says:

Because this problem is symbolic, we do not know what the unit of the deflection is. It is correct that the deflection is a unit of length though.

2. James Sun says:

Based on the question, i think it is just length unit. And since this question is fully symbolic, I just left one as the unit.