d) c) b) perpendicular to the ramp. Ramp, see figure. Question 5: What is the normal force of the ramp on the trunk? Now, assume the ramp is rough. If the acceleration of the trunk with friction is half the parallel to the ramp to be 90.0 N? Show all workings. Acceleration with no friction, find the coefficient of kinetic friction between the trunk and the ramp. What should the magnitude of the force F be for the component F such that the x-direction is parallel to the ramp and the y-direction is a) Draw a Free-Body-Diagram for the trunk. Use a coordinate system upward with a force F whose direction makes an angle of 30.0 with the mover's truck. The ramp has a slope angle of 20.0, and the man pulls A man is dragging a 25 kg trunk up the frictionless loading ramp of a 20.0.