Quick questions on Forces and equilibrium: moments, couples and the conditions for equilibrium - CCEA A-Level Physics

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?

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A uniform beam of weight

40\ \text{N}

and length

2.0\ \text{m}

is pivoted at its centre. A

10\ \text{N}

weight hangs

0.8\ \text{m}

from the pivot on one side. How far from the pivot must a

20\ \text{N}

weight hang on the other side to balance it?

What is q2?

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State the two conditions for a body to be in equilibrium. [2 marks]

What is q3?

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Two parallel forces of

15\ \text{N}

act in opposite directions, separated by

0.30\ \text{m}

, forming a couple. Find the torque. [2 marks]

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