Does anyone know like where they go??? If you could help I would appreciate it

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)

22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?

The ima of the following pulley system is