A-LevelPhysicsDynamics9702/12 · May/June 2014 · 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?
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A1250 J
B7500 J
C11250 J
D12500 J
✓ Correct answer
C: 11250 J
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