A-LevelPhysicsDynamicsMay/June 2014Paper 1 Q71 Mark
Two train carriages each of mass 5000 kg roll toward one another on a level track. One is travelling at 2.00 m s⁻¹ and the other at 1.00 m s⁻¹, as shown. [Figure 7.1] They collide and join together. What is the kinetic energy lost during the collision?
A1250 J
B7500 J
C11250 J
D12500 J
✓ Correct Answer
The correct answer is C. 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