If a body of mass m is moving on a rough horizontal surface of coefficient of kinetic friction μ , the net electromagnetic force exerted by the surface on the body is

Question

If a body of mass m is moving on a rough horizontal surface of coefficient of kinetic friction μ , the net electromagnetic force exerted by the surface on the body is, m g 1 + μ 2, μ m g, m g, m g 1 - μ 2

MARKS App · Accepted Answer

As, normal force and friction force are the two electromagnetic forces acting on the body The net electromagnetic force = N 2 + f 2 But N = m g , f = μ m g Force = m g 1 + μ 2

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