Momentum is exploited in many different sports and games. Write a brief essay on the uses of momentum collisions in a particular sport or game. Be sure to discuss the importance of mass and velocity in your example.

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