just need 5 4. [lpt] A skier ofmass m = 56.0 kg starts sliding down from the top

Question

just need 5

4. [lpt] A skier ofmass m = 56.0 kg starts sliding down from the top of a ski Jump with negligible tinction and takes off horizontally. Ifl_ 3.80 m and D = 12.8 m find H correct, computer gets: 1.45E+91 Hint: From h you can find the time of freefall, and thus find the skiers velocity as she takes oft horizontally. Use conservation of energy. Neglect any effect from the air (which plays an important role n ski-jumping) 5. [lpt] Find her total kinetic energy as she reaches the ground. Answer Submit All Answers

Explanation / Answer

D2 = 4h(H - h)

H = h + D2/(4h)

H = 14.56

now KE =  mgH = 56 * 9.8 * 14.56 = 8000.92 J

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