3. A book of mass m = 8.20 kg is held against a wall by a constant applied force, F.This force is applied at an angle theta = 30.0° with

respect to horizontal, as shown in the diagram. The coefficients of static and kinetic friction between the book and wall are He = 0.600 and ur = 0.450, respectively. (a) [10] If the applied force is too small, the book will slide downward. Calculate the minimum applied force required to prevent the book from sliding. Give a numerical value for the magnitude of the force. (b) [5] When this minimum force is being applied, what is the force that the book exerts on the wall? Put your numerical vector answer in component form.