A 5 kg bag lifted to a height of 3 m above the ground (g = 10 m/s²) has gravitational POTENTIAL ENERGY of:
A150 J, computed as mgh = 5 × 10 × 3
B15 J, computed as mh = 5 × 3
C50 J, computed as mg = 5 × 10
D30 J, computed as gh = 10 × 3
Answer & Solution
Correct answer: A. 150 J, computed as mgh = 5 × 10 × 3
Gravitational PE = mgh = 5 × 10 × 3 = 150 J. The bag stores this energy by virtue of its raised position.
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