The force acting parallel to the surface of the plane is the sine of the angle of elevation times the force acting "down."

220.4*sin[38.6°] = 220.4*0.6 = 132.24

220.4*sin[38.6°] = 220.4*0.6 = 132.24

220.4*sin[38.6°] = 220.4*0.6 = 132.24

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