Question 6 An apple with a mass of 0.5 kg falls to the ground. Use this information for questions 4-6.
If the apple fell for 4.2 m, what is the amount of work that gravity did onto the apple?
O 9.8)
O 1.17)
02.10
0 20.58)

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