A-LevelPhysicsDynamicsOct/Nov 2021Paper 1 Q91 Mark
The diagram shows two parachutists, X and Y, moving vertically downwards. [Figure 9.1] The total mass of parachutist Y and his parachute is twice the total mass of parachutist X and his parachute. At this moment, the air resistance on parachute Y is twice the air resistance on parachute X. Neither parachutist has reached his constant (terminal) velocity. Which statement describes the acceleration of Y compared with the acceleration of X?
AThe acceleration of Y is half the acceleration of X.
BThe acceleration of Y is the same as the acceleration of X.
CThe acceleration of Y is more than the acceleration of X, but less than twice the value.
DThe acceleration of Y is twice the acceleration of X.
✓ Correct Answer
The correct answer is B. This question tests the candidate's understanding of dynamics within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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