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3.3.4 Newton's third law and equilibrium

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Question 3

A light fixture L L\,L is attached to a ceiling beam by a light inextensible cord. A horizontal pulling force of 50 N is applied to the fixture. The fixture is in equilibrium when the cord makes an angle of 15∘ 15^\circ\,15∘ with the vertical.

a.

Find the tension in the cord.

[2]
b.

Find the weight of the light fixture.

[3]

3.3.4 Newton's third law and equilibrium Questions

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  3. /3.3.4 Newton's third law and equilibrium