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ZIMSEC A-Level Mechanics

6.1.3Moment of a force

Moment of a force in ZIMSEC A-Level Mechanics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic22 practice questions1 lesson
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Learning objectives

What the syllabus expects you to be able to do.

  1. 6.1.3.1Form 5: solve problems involving the moment of a force and the resultant moment of a system of forces.

Lessons

  • Moments and rigid bodies in equilibrium

    50 min

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Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Moment of a force: sample question

1 mark

Farai pulls on the end of a spanner of length 0.80.8 m with a force of 3535 N. The force makes an angle of 40°40° with the spanner. Find the moment of the force about the nut at the other end, correct to 3 significant figures.

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