In this question use g=9.8g = 9.8g=9.8 m s−2^{-2}−2.
A package of mass 2 kg is on a rough horizontal floor. A force of magnitude 6 N acts on the package at 30° 30°\,30° above the horizontal. The coefficient of friction between the package and the floor is 0.25.
Find the magnitude of the normal contact force exerted by the floor on the package.
Find the greatest possible magnitude of the frictional force.