Q

A 5 kg object is raised 4 m. Find the work done by gravity. (g = 10 m/s²)

RRB ALP & Technician 21/08/2018 / Shift-III 2018
✓ Answer: D -200 J
Wgravity = -mgh = -5 × 10 × 4 = -200 J.
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