Exam-style question
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A weightlifter lifts a weight of 200 N to a height of 2 m. Calculate the work done by the weightlifter.
- A.400 J
- B.200 J
- C.100 J
- D.0 J
Model answer
What a good answer should say
- 400 J
Explanation
Why this works
Work done (W) can be calculated using the formula W = F x s. Here, W = 200 N x 2 m = 400 J.
Thus, the work done by the weightlifter is 400 J.
Common mistake
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