A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 20.0$^\circ$, and the man pulls upward with a force $\overrightarrow{F}$ whose direction makes an angle of 30.0$^\circ$ with the ramp($\textbf{Fig. E4.4}$). (a) How large a force $\overrightarrow{F}$ is necessary for the component $F_x$ parallel to the ramp to be 90.0 N? (b) How large will the component $F_y$ perpendicular to the ramp be then?
Added by Steven H.
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The forces include the force of gravity acting downward, the normal force acting perpendicular to the ramp, the force of friction acting parallel to the ramp, and the force $\overrightarrow{F}$ that the man is applying. Show more…
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A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 20.0$^\circ$, and the man pulls upward with a force $\overrightarrow{F}$ whose direction makes an angle of 30.0$^\circ$ with the ramp($\textbf{Fig. E4.4}$). (a) How large a force $\overrightarrow{F}$ is necessary for the component $F_x$ parallel to the ramp to be 90.0 N? (b) How large will the component $F_y$ perpendicular to the ramp be then? Figure e4.4(Figure Cant copy)
Newton's Laws of Motion
Force and Interactions
A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of $20.0^{\circ},$ and the man pulls upward with a force $\vec{F}$ whose direction makes an angle of $30.0^{\circ}$ with the ramp (Fig. E4.4). (a) How large a force $\vec{F}$ is necessary for the component $F_{x}$ parallel to the ramp to be $90.0 \mathrm{~N} ?$ (b) How large will the component $F_{y}$ perpendicular to the ramp be then?
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