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A boy is pulling a crate of mass 3.5 kg by a horizontal

A boy is pulling a crate of mass 3.5 kg by a horizontal 1. A boy is pulling a crate of mass 3.5 kg by a horizontal string on a flat horizontal surface with a force of 24 N. The coefficient of kinetic friction between the crate and the surface is ?k = 0.20. (a) Find the normal force from the surface on the crate. (b) Find the force of friction on the crate, the net force on and the acceleration of the crate