A-LevelPhysicsKinematics9702/12 · May/June 2015 · Q91 Mark

A sprinter runs a 100 m race in a straight line. He accelerates from the starting block at a constant acceleration of 2.5 m s⁻² to reach his maximum speed of 10 m s⁻¹. He maintains this speed until he crosses the finish line. Which time does it take the sprinter to run the race?

A4 s

B10 s

C12 s

D20 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, May/June 2015 Paper 1 Variant 2, question 9.

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