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MCQ
The change in gravitational potential energy when a 60 kg object is lifted through 2 m (g = 10 m/s^2) is:
Unit-6 Work and Energy
A 120 J
B 1200 J
C 600 J
D 12 J
Explanation

Change in PE = mgh = 60 x 10 x 2 = 1200 J.

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