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A 7 m horizontal boom with a weight of 117 N sticks out from a wall....

A 7 m horizontal boom with a weight of 117 N sticks out from a wall. 642 N of mass hang from a point 4 m from the right hand end. The end of the boom is secured by a cable at a 22 degree angle relative to the boom. Find the tension in the cable.

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Answer #1

Here we apply concept of rotational equilibrium and torque balancing.

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