Exam-style question
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What is the force required to accelerate a 15 kg object at 2 m/s²?.
- A.30 N
- B.15 N
- C.45 N
- D.60 N
Model answer
What a good answer should say
- 30 N
Explanation
Why this works
Using F = ma, where F is the force, m is the mass, and a is the acceleration. Substituting the values: F = 15 kg × 2 m/s² = 30 N.
Thus, the required force is 30 N.
Common mistake
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