A man is dragging a trunk up the loading ramp of mover's truck. The ramp has a slope angle of 20 degree, and the man pulls upwar
d with a force F whose direction makes an angle of 30 degree with ramp. a) How large a force F is a necessary or the component F, parallel to the ramp to be 60N? b) How large will the component F, then be?
As we know that Fx = Fcos30.0deg <span>60.0N = Fcos30.0deg </span> <span>F = 60.0N/cos30.0deg </span> <span>F = 69.3 N </span><span> Fy = Fsin30.0deg </span> <span>Fy = 69.3 N sin 30.0 deg </span> <span>Fy = 34.6 N </span>hope it helps