At the extact same time, youj drop a piece of notebook paper and your science out the window. the science book hit first? why?

What is the speed of an object at a given moment?

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

If you let go of the notebook after lifting it, will it move? how?