Q

A 5 kg object is pushed 10 metres by a horizontal force of 20 N on a rough surface with coefficient of kinetic friction 0.2. Find the net work. (g = 10 m/s²)

RRB Technician Grade-I 19/12/2024 / Shift-I 2024
✓ Answer: A 100 J
Friction = μmg = 0.2 × 5 × 10 = 10 N. Net work = (20 - 10) × 10 = 100 J.
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