Exam-style question
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A force of 50 N is applied to a 10 kg mass. What is the acceleration of the mass?.
- A.5 m/s²
- B.10 m/s²
- C.15 m/s²
- D.20 m/s²
Model answer
What a good answer should say
- 5 m/s²
Explanation
Why this works
Using F = ma, rearranging gives a = F/m. Substituting the values: a = 50 N / 10 kg = 5 m/s².
Therefore, the acceleration of the mass is 5 m/s².
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