A-LevelPhysicsDynamicsFeb/Mar 2017Paper 1 Q91 Mark
Water flows out of a pipe and hits a wall. [Figure showing pipe, water jet, wall, velocity v, cross-sectional area A] When the jet of water hits the wall, it has horizontal velocity v and cross-sectional area A. The density of the water is ρ. The water does not rebound from the wall. What is the force exerted on the wall by the water?
Aρv
A
Bρv²
A
CρAv
DρAv²
✓ Correct Answer
The correct answer is D. 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...
🔒
Unlock the Examiner's Answer
Sign up for free to reveal the correct answer, the official mark scheme breakdown, and the examiner trap analysis for this question.
Sign Up Free to Unlock →Join thousands of Cambridge students already using Oracle Prep