Exam-style question
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A particle of mass 3 kg has resultant force 13 N. Find the acceleration.
- A.4.33 m s^-2
- B.5.33
- C.3.33
- D.8.66
Model answer
What a good answer should say
- The correct answer is 4.33 m s^-2.
This answer is tied to the objective: J5 Use vectors to solve problems in pure mathematics and in context, including forces and kinematics..
Explanation
Why this works
Use the explanation to connect the worked answer back to J5 Use vectors to solve problems in pure mathematics and in context, including forces and kinematics..
The locked answer is 4.33 m s^-2. Work through the given values, keep one operation per line, and check the final step reaches 4.33 m s^-2.
Maths method check
- Topic focus: Pure Mathematics - vectors.
- 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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