Aman is dragging a trunk up the loading ramp of a mover’s truck. the ramp has a slope angle of 20.0°, and the man pulls upward with a force f s whose direction makes an angle of 30.0° with the ramp (fig. e4.4). (a) how large a force f s is necessary for the component fx parallel to the ramp to be 90.0 n

answer: point c: b. 1/2 potential, 1/2 kinetic, point a: 3/4 of its potential energy, point d or b: 3/4 potential, 1/4 kinetic

explanation: i cant explain. it's difficult to explain.

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.

truck y has a greater velocity than truck x.

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000