What is the gravitational potential energy gained by a 2 kg object lifted 5 m? (take g = 10 N/kg)
Answer and explanation
Correct answer: A. 100 J
- Step 1: Potential energy = mass x g x height.
- Step 2: 2 x 10 x 5 = 100 J.
Answer
100 J.
Why not the others: 10 J: the gravitational field strength was left out. 1 J: the product was divided by 10. 1000 J: g was applied twice.
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