A-LevelPhysicsWork, energy and power9702/12 · Oct/Nov 2017 · Q181 Mark
Car X is travelling at half the speed of car Y. Car X has twice the mass of car Y. Which statement is correct?
ACar X has half the kinetic energy of car Y.
BCar X has one quarter of the kinetic energy of car Y.
CCar X has twice the kinetic energy of car Y.
DThe two cars have the same kinetic energy.
✓ Correct answer
A: Car X has half the kinetic energy of car Y.
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