Q

A porter raises a 12 kg object from the ground onto his head 1.5 metres above the ground. Find the work done. (g = 10 m/s²)

RRB Group D 04/10/2018 / Shift-I 2018
✓ Answer: C 180 J
W = mgh = 12 × 10 × 1.5 = 180 J. The repeated 150 J options are retained from the PDF.
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