A 17.8 kg flood light in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole. A cable connected to the beam helps to support the light
postillan4
Answered question
2021-02-04
A 17.8 kg flood light in a park is supported at the end of a horizontal beam of negligible mass that is hinged to a pole. A cable connected to the beam helps to support the light. (In thefigure,
(A) 320 N
(B) 250 N
(C) 0
Answer & Explanation
i1ziZ
Skilled2021-02-05Added 92 answers
Weight
Take
Weight of the floodlight
Let the length of the beam be x.
Perpendicular distance from the force T to the the point O
Taking moments about point O,
Anti clockwise moment = clockwise moment
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