The difference between speed and velocity
2 marks · EasyA sprinter starts a race at 0 m/s and reaches a speed of 10 m/s in 5 s. Calculate the sprinter's acceleration.
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2 m/s^2 (±0.1)
Also accept: 2.0 m/s^2
Common mistakes: Omitting initial velocity; Wrong subtraction; Unit error
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Marking points
M1 · 1 mark · Correct substitution into
A1 · 1 mark · Final answer 2 m/s² with unit
Worked solution
Initial velocity
Final velocity
Time