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

[emerica1254]

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.

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.

 

[tiny-tim]

hi emerica1254!

you'll need one moment and two directions

 

[emerica1254]

Can you clarify a little more?

 

[tiny-tim]

hi emerica1254!

show us what you've tried, and where you're stuck, and then we'll know how to help!

 

[emerica1254]

Ive tried tension of rope =1320cos50+1960*9.8
Vertical force= 1320sin30+1960*9.8
Horizontal force= 1320cos30+1960*9.8

 

[tiny-tim]

sorry, i don't understand any of that

suppose A B and C are the answers to (a) (b) and (c) …

what are the two equations for the horizontal and vertical components of force on the beam?

and what is your equation for the https://www.physicsforums.com/library.php?do=view_item&itemid=64" (the torques)?

 

[emerica1254]

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?

 

[tiny-tim]

call the length L …

it'll cancel out in the end anway ​

 

[emerica1254]

I'm still not getting the right answer and the only equations i can think of using are the ones i already tried.

 

[tiny-tim]

show us your moments equation

 

[emerica1254]

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

 

[tiny-tim]

I'm not sure what you mean, are you talking about inertia?

no, I'm talking about https://www.physicsforums.com/library.php?do=view_item&itemid=64" of forces (torques of forces) about a point …

you need to read about this before you can do this question​