# Solution to Problem 639 | Deflection of Cantilever Beams

SPONSORED LINKS

SPONSORED LINKS

SPONSORED LINKS

SPONSORED LINKS

SPONSORED LINKS

- Re: Problem 09 | Bernoulli's Energy Theorem 1 week 2 days ago
- Re: Solution to Problem 636 | Deflection of Cantilever Beams 1 week 5 days ago
- Re: Differential Calculus 2 weeks 13 hours ago
- Re: Solution to Problem 607 | Double Integration Method 2 weeks 1 day ago
- Re: Problem 333 | Equilibrium of Parallel Force System 2 weeks 6 days ago
- Re: Problem 310 - 311 | Equilibrium of Concurrent Force System 3 weeks 3 days ago
- Re: Solution to Problem 403 | Shear and Moment Diagrams 3 weeks 4 days ago
- Re: Solution to Problem 307 Torsion 3 weeks 4 days ago
- Re: Elementary Differential Equations 3 weeks 6 days ago
- Re: Problem 002-ms | Method of Sections 1 month 15 hours ago
- Re: Solution to Problem 636 | Deflection of Cantilever Beams 1 month 17 hours ago
- Re: Applied force on B. 1 month 1 day ago
- Re: Solution to Problem 530 | Economic Sections 1 month 5 days ago
- Re: Applied force on B. 1 month 6 days ago
- Re: Solution to Problem 403 | Shear and Moment Diagrams 1 month 1 week ago
- Re: Problem 03 | Equations with Homogeneous Coefficients 1 month 1 week ago
- Re: Problem 513 | Friction 1 month 1 week ago
- Re: Problem 531 | Friction 1 month 1 week ago
- Re: 247 - Resultant of couples in a 3-step pulley 1 month 1 week ago
- Re: Problem 002-ms | Method of Sections 1 month 1 week ago

**Need some help?**

Mymathdone.com provides math homework help of any complexity degree at reasonable prices. 100% Satisfaction or Money back guarantee.

http://www.mymathdone.com/

## Comments

## Re: Solution to Problem 639 | Deflection of Cantilever Beams

i think you missed this sir..

-1/3(6400)(8)(8/4)..

it should be 2ft not 6ft

## Re: Solution to Problem 639 | Deflection of Cantilever Beams

The barred(x) is measured from A not from C.

## Re: Solution to Problem 639 | Deflection of Cantilever Beams

Why is there (12^3) at the end?

## Re: Solution to Problem 639 | Deflection of Cantilever Beams

The 12

^{3}is a conversion from ft^{3}to in^{3}. The product "area of moment diagram × distance" has unit of lb·ft^{3}. Take for example the triangular area in the moment diagram.(1/2)(6 ft)(5400 lb·ft)(6 ft) = 97 200 lb·ft

^{3}We need to convert it into lb·in

^{3}to make it consistent with the unit of E which is psi (or lb/in^{2}) and unit of I which is in^{4}.