help help... rigid body equilibrium problems

Erikha21 · **Joined:** Wed, 25 Jun 2003 14:32:22 UTC **Posts:** 14

Hi! can somebody help me solve this problems, im really having a hard time. thanks!

1.) a horizontal beam is attached to a wall beam weighs 150N, and its center of gravity is at its center.3.00m above it lies a cable that extends 5.00m long to the tip of the beam with a body hanging that weighs 300N find a.) the tension in the cable; b.) the horizontal and vertical components of the force exerted on the beam at the wall.

thanks id really appreciate if u cud help me on this.

Eccentric · **Joined:** Thu, 5 Jun 2003 18:45:23 UTC **Posts:** 80

Erikha,

By using the law of conservation of moments in equilibrium, take the moments about A;

$150 \times 2 + 300 \times 4 = 4 \times T sin \theta$

$\theta$ is the angle between the cable and the rod

Can you see what to do next?

Post if you need more help.

Regards,
Yousif

S.O.S. Mathematics CyberBoard

help help... rigid body equilibrium problems

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