A 2 kg mass lying on a table is displaced in the horizontal direction through 50 cm . The work done by the normal reaction will be

Question

A 2 kg mass lying on a table is displaced in the horizontal direction through 50 cm . The work done by the normal reaction will be, 10 J, 0, 100 erg, 100 J

MARKS App · Accepted Answer

Since, displacement on the body of mass 2 kg is in the horizontal direction while normal reaction acts on the body in perpendicular to the displacement. Hence, θ = 0 ∴ Work done, W = F s cos 9 0 ∘ = 0

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