A-LevelPhysicsKinematics9702/12 · Oct/Nov 2018 · Q61 Mark

A sprinter runs a 100 m race. The sprinter has a constant acceleration from rest of 2.5 m s⁻² until reaching a speed of 10 m s⁻¹. The speed then remains constant until the end of the race. Which time does it take the sprinter to run the race?

A8.9 s

B10 s

C12 s

D14 s

✓ Correct answer

C: 12 s

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Topic: Kinematics, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Oct/Nov 2018 Paper 1 Variant 2, question 6.

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