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O-LevelPhysicsForces5054/12 · May/June 2014 · Q91 Mark

A beam of length 40 cm is pivoted at one end. The weight of the beam is 4.0 N and acts at a point 20 cm from the pivot. A 2.0 N weight hangs 10 cm from the pivot. An upward force U is needed to keep the beam horizontal. What is the size of U?

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A0.5 N

B1.5 N

C2.5 N

D6.0 N

✓ Correct answer

C: 2.5 N

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About this question

Topic: Forces, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2014 Paper 1 Variant 2, question 9.

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