A-LevelMathematicsMechanics9709/43 · May/June 2024 · Q23 Marks
A particle of mass 0.2kg is attached to one end of a light inextensible string. The other end of the string is attached to a fixed point on a vertical wall. The particle is held in equilibrium by a force of magnitude X N, perpendicular to the string, with the string taut and making an angle of 30° with the wall (see diagram).
- Find the tension in the string and the value of X.[3]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (May/June 2024). The mark or mark type is shown in brackets.
- [M1] Must have correct number of relevant terms (forces must have components as required). Allow sin/cos mix. Allow sign errors.
- [M1] Must have correct number of relevant terms (forces must have components as required). Allow sin/cos mix but must be consistent with their other equation. Allow sign errors.
- [A1] For both.
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