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: R5 Understand and use addition of forces, resultant forces and dynamics for motion in a plane..
Explanation
Why this works
Use the explanation to connect the worked answer back to R5 Understand and use addition of forces, resultant forces and dynamics for motion in a plane..
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: Mechanics.
- Question style: practice.
- 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.