Exam-style question
Try this first
A particle of mass 4 kg has resultant force 14 N. Find the acceleration.
- A.3.5 m s^-2
- B.5.5
- C.1.5
- D.7
Model answer
What a good answer should say
- The correct answer is 3.5 m s^-2.
This answer is tied to the objective: R1 Understand the concept of a force and understand and use Newton's first law..
Explanation
Why this works
Use the explanation to connect the worked answer back to R1 Understand the concept of a force and understand and use Newton's first law..
calculator check uses Force and Newton's first law: identify the quantities, do the stated operation, and select 3.5 m s^-2 because it matches the verified final answer.
Maths method check
- Topic focus: Mechanics.
- Question style: practice.
- Reasoning demand: understanding.
- 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.