Physics · May / June 2021 · Paper 11 · Question 8
A horizontal beam is pivoted at X. A mass of 200 g rests on the beam as shown. The centre of mass of the beam is 50 cm from the right-hand end of the beam. The beam is balanced. What is the mass of the beam?
- A80 g
- B100 g
- C400 g
- D800 g
As printed in the paper
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Correct answer: C. 400 g
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