• Support PF! Buy your school textbooks, materials and every day products Here!

Finding forces on bolted platform (torques/forces)

  • #1

Homework Statement


1zbt5d0.png


Homework Equations


ƩF = mA
T=rxF


The Attempt at a Solution


Using sum of forces, I found:
ƩF=mA
150lb + 50lb - F1 - F2 = 0
(calling the support on the right "1") ƩT1 = 0

But I'm a little confused on where to go from this point. Any advice?
 

Answers and Replies

  • #2
294
0
Look at each of the two supports individually. What forces act on each?
 
  • #3
That would be the upward force of the board due to the torque at support 1, minus the force of the bolt holding the board to the support, correct?
 
  • #4
294
0
And what can you say about the sum of the torques?
 
  • #5
The sum of the torques, because there is no motion, will equal zero. Would it be correct to say the following...?
ƩT=0
0=(150lb)(2ft)-(50lb)(1ft)+(F2)(3ft)
F2=83.3lb
 

Related Threads on Finding forces on bolted platform (torques/forces)

Replies
6
Views
2K
Replies
7
Views
1K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
4
Views
3K
Replies
15
Views
3K
Replies
4
Views
729
Replies
13
Views
840
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
3
Views
3K
Top