A-LevelPhysicsDynamicsFeb/Mar 2021Paper 1 Q81 Mark
A ball strikes a horizontal surface with momentum p at an angle θ to the surface, as shown. [Figure 8.1] The ball rebounds with the same magnitude of momentum at an angle θ to the surface. The ball is in contact with the surface for time t. What is the magnitude of the average resultant force acting on the ball during the collision?
Azero
B2p / t
C2pcosθ / t
D2psinθ / t
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The correct answer is D. This question tests the candidate's understanding of dynamics within the Physicssyllabus. The examiner's mark scheme requires...
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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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