O-LevelPhysicsKinematics5054/11 · Oct/Nov 2010 · Q41 Mark

A small stone is dropped from the top of a ladder, falls and hits the ground. It does not rebound. Which speed-time graph is correct?

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Aspeed-time graph showing speed increasing linearly from 0, then constant.

Bspeed-time graph showing speed constant at a value > 0, then dropping to 0 instantaneously.

Cspeed-time graph showing speed increasing linearly from 0, then dropping to 0 instantaneously, remaining at 0.

Dspeed-time graph showing speed increasing linearly from 0, then decreasing linearly to 0, remaining at 0.

✓ Correct answer

C: speed-time graph showing speed increasing linearly from 0, then dropping to 0 instantaneously, remaining at 0.

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Topic: Kinematics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2010 Paper 1 Variant 1, question 4.

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