How Do You Calculate Tension and Force Components in a Supported Beam Scenario?

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    Force Tension
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Homework Help Overview

The problem involves a uniform beam supported by a cable and attached to a vertical wall, with a crate hanging from the beam. Participants are tasked with calculating the tension in the wire and the horizontal and vertical components of the force exerted by the wall.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants discuss the need for moment equations and the directions of forces. Some express confusion about the equations used for tension and force components, while others ask for clarification on the approach and the use of torque.

Discussion Status

The discussion is ongoing, with participants sharing their attempts and seeking clarification on the equations involved. There is a focus on understanding the relationship between forces and torques, and some guidance has been offered regarding the need for moment equations.

Contextual Notes

Participants mention the necessity of knowing lengths for torque calculations, and there is a suggestion that certain variables may cancel out in the equations. Some participants express uncertainty about the equations they have tried.

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Homework Statement



A 1320-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A 1960-N crate hangs from the far end of the beam. Using the data shown in the figure, find (a) the magnitude of the tension in the wire and the magnitudes of the (b) horizontal and (c) vertical components of the force that the wall exerts on the left end of the beam.
ch09p_20.gif

Homework Equations


F=ma

The Attempt at a Solution


I'm pretty stuck on this, if someone could give me some advice that would be very helpful.
 
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hi emerica1254! :smile:

you'll need one moment and two directions :wink:
 
Can you clarify a little more?
 
hi emerica1254! :wink:

show us what you've tried, and where you're stuck, and then we'll know how to help! :smile:
 
Ive tried tension of rope =1320cos50+1960*9.8
Vertical force= 1320sin30+1960*9.8
Horizontal force= 1320cos30+1960*9.8
 
Last edited by a moderator:
I was using the forces from the weight of the box and bar and l also used the angle. Don't i need a length to use torque?
 
call the length L …

it'll cancel out in the end anway :smile:​
 
I'm still not getting the right answer and the only equations i can think of using are the ones i already tried.
 
  • #10
show us your moments equation
 
  • #11
I'm not sure what you mean, are you talking about inertia? i know I=1/3*M*L squared for the beam
and Torque= I*angular acceleration
 
  • #12
Last edited by a moderator:

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