Exam-style question
Try this first
Use a checking method for this problem: A particle has u = 4 m s^-1, a = 2 m s^-2 and t = 5 s. Find v. State the final answer and verify it against the information in the question.
Model answer
What a good answer should say
- A valid checked answer is 14 m s^-1.
- The method is: Use SUVAT because acceleration is constant.
- Choose v = u + at.
- Set u = 4.
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..
calculator check keeps the canonical answer 14 m s^-1 fixed before the model answer is written, so the worked solution and final answer agree.
Maths method check
- Topic focus: Mechanics.
- Question style: exam_style.
- Reasoning demand: recall.
- Check the operation, notation, units, and final answer form against the question before moving on.
Common mistake
No common mistake is linked to this question yet.