Exam-style question
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A car accelerates uniformly from rest to a speed of 20 m/s over a distance of 100 m. Calculate the acceleration of the car.
Model answer
What a good answer should say
- The acceleration of the car is 2 m/s².
Explanation
Why this works
This question tests the understanding of uniform acceleration equations. The formula used is v² = u² + 2as, where v is the final velocity, u is the initial velocity, a is acceleration, and s is distance.
Substituting the values gives a clear calculation of acceleration.
Common mistake
No common mistake is linked to this question yet.