A-LevelPhysicsDynamics9702/12 · Oct/Nov 2016 · Q111 Mark
Two frictionless trolleys are moving towards each other along the same horizontal straight line. Their masses and velocities are shown. [Figure 11.1] The trolleys collide and stick together. What is the velocity of the trolleys after the collision?
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A2.0 m s⁻¹ to the left
B2.0 m s⁻¹ to the right
C2.8 m s⁻¹ to the left
D2.8 m s⁻¹ to the right
✓ Correct answer
A: 2.0 m s⁻¹ to the left
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