A street lamp weighs 146 n. it is supported equally by two, Ask an Expert

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Q. A cylindrical container 1.30 tall contains mercury to a certain depth,. The rest of the cylinder is filled with water. If the pressure at the bottom of the cylinder is two atmospheres, what is the depth?

Q. A street lamp weighs 146 N. It is supported equally by two wires that form an angle of 120° with each other.

(i) What is the tension of each of these wires?

(ii) If the angle between the wires is reduced to 90°, what new force does each wire exert?

(iii) As the angle between the wires decreases, what happens to the force on wires?

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