1. A man is dragging a tank up the loading ramp of a mover's truck. The ramp has a slope angle of 20.0o, and the man pulls upward with a force F whose direction makes an angle of 30.0o with the ramp.
a. How large a force F is necessary to in order for the component Fx parallel to the plane be 28.0N?
b. How large will the component Fy be?
c. What is the weight of the trunk?
c. What is the weight of the trunk?
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2. A 200-N box is placed on top of an inclined plane whose angle of is 30.0o from the horizontal. Determine the force needed to keep it in its position. neglect friction.
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