The desperate contestants on a TV survival show are very hungry, but the only food they can see is some fruit hanging on a branch high in a tree. Fortunately, they have a spring they can use to launch a rock which has a spring constant of 1530 N/m. They can compress the spring by a maximum of 19.1 cm and they choose a rock that has a mass of 904 g. a) With what speed does the rock leave the spring?
b) To what height can the rock be launched?

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.

a. are

the components of a vector are the parts of the vectors that are to each other.

b perpendicular