A particle is pulled along a curved surface very slowly. The coefficient of kinetic friction between the particle and surface is 0 . 4 . The heat generated during the pulling of the particle from the lowest point A to the topmost point B equals (The mass of the particle is 5 g )

Question

A particle is pulled along a curved surface very slowly. The coefficient of kinetic friction between the particle and surface is 0 . 4 . The heat generated during the pulling of the particle from the lowest point A to the topmost point B equals (The mass of the particle is 5 g ), 100 J, 0 . 1 J, 50 J, 23 J

MARKS App · Accepted Answer

Heat generated = work done by friction = μ m g L = 0.4 × 5 × 10 - 3 × 10 × 5 = 10 - 1 j o u l e = 0.1 J

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