The bird perched on the swing in the figure has a mass of 56 g, and the base of the swing
has a mass of 179.2 g. Assume that the swing
and the bird are originally at rest and that the
bird then takes off horizontally at 2.38 m/s.
The acceleration of gravity is 9.8 m/s^2

If the base can swing freely (without friction) around the pivot, how high will the base
of the swing rise above its original level?
Answer in units of m.

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.

at right angles to each other

drying towels at the beach