Exam-style question
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A person lifts a mass of 10 kg to a height of 5 meters. Calculate the work done against gravity. (Use g = 9.81 N/kg).
Model answer
What a good answer should say
- The work done is 490.5 J.
Explanation
Why this works
This question assesses the ability to calculate work done against gravitational force using the formula W = m x g x h. The substitution demonstrates how mass, gravitational field strength, and height relate to work done.
Common mistake
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