4-34. A crate of weight W = 100 lb sits on a ramp oriented at 27 degrees relative to ground, as shown in Fig. P4.34. The free-body diagram showing the external forces is also shown in Fig. P4.34. a. Using the x-y coordinate system shown in Fig. P4.34, write the friction force Fand the normal force N in rectangular vector notation (i.e., in terms of unit vectors i and j). b. Determine the values of F and N required for static equilibrium; in other words, find the values of F and Nif F+N+W=0. y Figure P4.34 A crate resting on a ramp for problem P4-34- x 100 lb 27 W N F