Solving Statics Questions with Different Units

  • Thread starter Thread starter hjkklm
  • Start date Start date
  • Tags Tags
    Statics
Click For Summary

Discussion Overview

The discussion revolves around solving statics questions involving different units for force and length. Participants are attempting to determine the height (h) in a statics problem, with a focus on the relationships between forces and their components.

Discussion Character

  • Homework-related
  • Mathematical reasoning
  • Technical explanation

Main Points Raised

  • One participant notes the challenge of differing units for force and length and seeks assistance in finding h.
  • Another participant requests the original poster to share their attempts to provide more targeted help.
  • A participant outlines their approach to finding forces and their components, indicating a potential mathematical error in their calculations.
  • Further advice is given to simplify the problem by drawing free body diagrams and using trigonometric relationships to express angles in terms of known quantities.

Areas of Agreement / Disagreement

There is no consensus on the solution to the problem, and multiple approaches are being discussed without resolution.

Contextual Notes

Participants have not fully resolved the mathematical steps involved in the problem, and there are indications of potential errors in calculations that remain unaddressed.

hjkklm
Messages
12
Reaction score
0
The units are different.
One is the force unit, and one is the length unit.
Then how to find the h?

Question is attached in the file

thanks
 

Attachments

  • Mechanics Q_1.jpeg
    Mechanics Q_1.jpeg
    25.3 KB · Views: 538
Physics news on Phys.org
Please provide your best attempt so far - that way we can give you the help you personally need.
 
I intend to find the all forces and then find the length through the force quantity.
I will find the forces component firstly. x-component=150cosθ N (h cm), y-component=150sinθ N (40cm)
150cosθ N= 170N <----but it is math error or no solution

Then I can't find, help please.
 
... you tried to do too many steps at once.
Start by drawing free body diagrams for the collar and the weight - separately.
Don't forget the tension in the cable.

If the angle between the rod and the cable (off the collar) is A, then you can express the trig functions in terms of things you know: eg. tan(A)=40/h.
 

Similar threads

Engineering 2nd Degree Inderteminacy for Structure Using Force Method
  • · Replies 3 ·
Replies
3
Views
3K
Engineering Control systems block diagram: Valid or Invalid?
  • · Replies 5 ·
Replies
5
Views
599
Spiral scissor lift statics
  • · Replies 4 ·
Replies
4
Views
3K
Engineering Statics problem (Simple first year): Calculate the internal forces for this structure
  • · Replies 11 ·
Replies
11
Views
4K
Engineering Statics of Rigid Bodies - Why is the normal force not considered?
  • · Replies 4 ·
Replies
4
Views
2K
Engineering Should the # of atoms in a unit cell be considered to find the % volume change?
  • · Replies 1 ·
Replies
1
Views
7K
Engineering Instantaneous Center of Rotation (Polplan in german) and STATICS
  • · Replies 1 ·
Replies
1
Views
2K
Engineering Static Vs Dynamic Force Analysis in Mechanism
  • · Replies 3 ·
Replies
3
Views
2K
Static B.C & first moment of area of connecting rod
  • · Replies 4 ·
Replies
4
Views
2K
Engineering Control System mass spring damper
  • · Replies 0 ·
Replies
0
Views
2K