Hinged beam suspended at an angle

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In summary, the problem involves a beam attached to a wall with a hinge and supported by a cable at a 90° angle. The question asks for the horizontal component of the force exerted by the hinge on the beam, as well as the magnitude of the force that the beam exerts on the hinge. Using the equations f=ma and t=Fr, the system is determined to be in equilibrium and the x and y components of the forces can be calculated. The solution involves finding the tension in the cable and using trigonometric functions to determine the x and y components of the forces.
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rickbusiness
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Homework Statement


A 35.8 kg beam is attached to a wall with a hinge and its far end is supported by a cable. The angle between the beam and the cable is 90°. If the beam is inclined at an angle of theta=17.8° with respect to horizontal, what is the horizontal component of the force exerted by the hinge on the beam? (Use the 'to the right' as + for the horizontal direction.)

What is the magnitude of the force that the beam exerts on the hinge?

heres a picture: http://tinypic.com/r/141v7o6/6

Homework Equations



f=ma
t=Fr

The Attempt at a Solution



forces in the x dricection= 0
forces in the y direction= 0
net torque = 0

I think the tension can be found by L/2mgcos(theta)=LT
T=1/2mgcos(theta)

so the x component of the tension= x component of the hinge on the beam

Fx=Tsin(theta)The system is in equilibrium
Im unsure about how to approach this question because the beam is on an angle. An explanation with a worked solution would be very very much appreciated.
 
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  • #2
nevermind, figured it out. for anyone doing a similar problem here's my sol'n

Fxhinge=Tsin(theta)
Fy=0=Tcos(theta)-mg+Fyhinge
Fyhinge=mg-Tcos(theta)

Fxhinge squared + Fyhinge squared = F hinge squared
 

What is a hinged beam suspended at an angle?

A hinged beam suspended at an angle is a structural element that is supported at one end by a hinge and at the other end by a cable or chain that is suspended at an angle.

What is the purpose of a hinged beam suspended at an angle?

The purpose of a hinged beam suspended at an angle is to provide a stable support for loads, such as the weight of a bridge or a hanging sign.

What factors affect the stability of a hinged beam suspended at an angle?

The stability of a hinged beam suspended at an angle can be affected by the weight and distribution of the load, the strength and angle of the suspending cable, and the strength of the hinge.

How is the angle of suspension determined for a hinged beam?

The angle of suspension for a hinged beam is determined by the desired stability and load-bearing capacity of the structure. It is typically calculated using trigonometric principles and engineering calculations.

What are the advantages of using a hinged beam suspended at an angle?

Hinged beams suspended at an angle offer several advantages, including increased stability and load-bearing capacity compared to a simple hinged beam, as well as the ability to span longer distances without additional support.

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