Which example show harassment? a) picking on a student for the clothes he wears b)calling a student stupid first tripping c) making fun of a peer because she is asian d) teasing a student. because if the books they read plz answer giving 12 points!

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