Exam-style question
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In a seesaw, if one side has a moment of 30 Nm, what moment must the other side have for equilibrium?.
- A.15 Nm
- B.30 Nm
- C.45 Nm
- D.60 Nm
Model answer
What a good answer should say
- 30 Nm
Explanation
Why this works
For the seesaw to be in equilibrium, the moments on both sides must be equal. Therefore, if one side has a moment of 30 Nm, the other side must also have a moment of 30 Nm.
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