Exam-style question
Try this first
A particle of mass 4 kg has resultant force 16 N. Find the acceleration.
- A.4 m s^-2
- B.8
- C.0
- D.4 m s^-2 distractor 3
Model answer
What a good answer should say
- The correct answer is 4 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..
Trace the calculation before choosing. The verified method for Vector problem solving gives 4 m s^-2; no later explanation is allowed to change that value.
Maths method check
- Topic focus: Pure Mathematics - vectors.
- Question style: practice.
- Reasoning demand: analysis.
- 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.