The jumper has a mass of 60 kg, and the bridge's height above the river is 150 m. the rope has an unstretched length of 8 m and stretches a distance of 4 m before bringing the jumper to a stop. determine the maximum speed of the jumper and the spring constant of the rope. in your calculation, use g = 10 n/kg.

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