Answer to Question #218143 in Physics for Menzi

Question

A block with mass m is dragged across a horizontal surface at constant speed v by a force of magnitude Fapp, which acts at an angle of θ above the horizontal surface. The coefficient of kinetic friction between the block and the surface is coefficient of kinetic friction µ_k. The normal force exerted on the block by the horizontal surface is:

Answer 1

The normal force exerted on the block by the horizontal surface is:

$$N=mg-F_{app}\sin \theta$$