Observe some of the phenomena around your home. look for something that you can’t explain right away, but that you could test with an experiment. then, design an experiment that you could conduct at home. make sure to identify the independent, dependent, and controlled variables. you should also write your own hypothesis. you don’t need to perform the experiment, just identify the variables and write hypothesis

Awater slide of length l has a vertical drop of h. abby's mass is m. an average friction force of magnitude f opposes her motion. she starts down the slide at initial speed vi. use work-energy ideas to develop an expression for her speed at the bottom of the slide. then evaluate your result using unit analysis and limiting case analysis. express your answer in terms of the variables h, m, l, vi, f and appropriate constants. vf v f