Question

A sign is hung from a 16.8 kg horizontal boom. The boom is held in place by a cord that extends from above the wall, meeting the end of the boom at an angle of 26.1 degrees. If the sign is 18.8 kg and is hung from a point 3/4 of the length from the wall, what is the tension in the cord?

Answer #1

A 1,300–N uniform boom at
ϕ = 60.0°
to the horizontal is supported by a cable at an angle
θ = 30.0°
to the horizontal as shown in the figure below. The boom is
pivoted at the bottom, and an object of weight
w = 1,950 N
hangs from its top.
A boom of length l with its bottom end on a pivot is
shown. The boom points up and to the right and makes an angle
ϕ with the...

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Suppose you’re building a contraption which contains a solid rod
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Q1: A body of mass 10kg is attached to one end of a cord, the
other end of which is fixed to a peg in a wall. The body
is pulled aside by a horizontal force so that the cord is inclined
at an angle of 30° to the vertical. Find the horizontal force and
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