SOLUTION: A 185 kg horizontal beam is supported at each end. A 320 kg piano rests a fifth of the way from one end. What is the vertical force on the support closest to the piano? _____

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: A 185 kg horizontal beam is supported at each end. A 320 kg piano rests a fifth of the way from one end. What is the vertical force on the support closest to the piano? _____      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1107143: A 185 kg horizontal beam is supported at each end. A 320 kg piano rests a fifth of the way from one end.
What is the vertical force on the support closest to the piano?

_____N
What is the vertical force on the support furthest from the piano?

_____N
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
.
1.R%5B1%5D%2BR%5B2%5D=320g%2B185g Sum of forces
.
.
.
2.Wg%2A%28L%2F5%29%2B185g%28L%2F2%29-R%5B2%5D%2AL=0 Sum of moments about R%5B1%5D
%28g320%2F5%2B185%2F2%29=R%5B2%5D
Solve for R%5B2%5D.
Now use eq. 1 to solve for R%5B2%5D.
The solutions will be in kg not N.