Exam-style question
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A particle has u = 4 m s^-1, a = 2 m s^-2 and t = 5 s. Find v.
- A.14 m s^-1
- B.15
- C.13
- D.28
Model answer
What a good answer should say
- The correct answer is 14 m s^-1.
This answer is tied to the objective: Q5 Model motion under gravity in a vertical plane using vectors, including projectiles..
Explanation
Why this works
Use the explanation to connect the worked answer back to Q5 Model motion under gravity in a vertical plane using vectors, including projectiles..
The locked answer is 14 m s^-1. Work through the given values, keep one operation per line, and check the final step reaches 14 m s^-1.
Maths method check
- Topic focus: Mechanics.
- Question style: practice.
- Reasoning demand: recall.
- Check the operation, notation, units, and final answer form against the question before moving on.
Common mistake
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