Finding forces on bolted platform (torques/forces)

In summary, the conversation is discussing the use of sum of forces and torques to solve a physics problem involving a board and two supports. The problem is broken down into individual supports and the forces acting on them are identified. The sum of the torques is also discussed, with the conclusion that it must equal zero in this situation. Finally, the equation ƩT=0 is used to solve for the unknown force, F2, which is calculated to be 83.3lb.
  • #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?
 
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  • #2
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
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
 

1. What are the main forces acting on a bolted platform?

The main forces acting on a bolted platform are the weight of the platform and any objects placed on it, as well as any external forces such as wind or seismic activity.

2. How do you calculate the torque on a bolted platform?

To calculate the torque on a bolted platform, you need to first determine the force acting on the platform (such as the weight or external forces), the distance from the force to the pivot point (or center of rotation), and the angle between the force and the platform. The torque is then calculated by multiplying the magnitude of the force by the distance and the sine of the angle.

3. What factors can affect the forces on a bolted platform?

The forces on a bolted platform can be affected by various factors such as the weight of the platform and any objects on it, the material and strength of the bolts, the design and construction of the platform, and any external forces such as wind or seismic activity.

4. How do you ensure the safety of a bolted platform under different forces?

To ensure the safety of a bolted platform under different forces, it is important to use high-quality bolts and materials, follow proper construction and design standards, and consider all potential external forces in the design process. Regular inspections and maintenance can also help identify and address any potential safety hazards.

5. Can you determine the forces on a bolted platform using mathematical equations?

Yes, the forces on a bolted platform can be determined using mathematical equations such as Newton's laws of motion and the principles of statics. These equations can help calculate the forces and torques acting on the platform and ensure its stability and safety.

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