Question: 330A energy Formula sheet Skin ea 7. (10 marks) A 75kg Bungee Jumper is on a platform, some distance above a river. The clastic bungee

330A energy Formula sheet Skin ea 7. (10 marks) A 75kg Bungee Jumper is on a platform, some distance above a river. The clastic bungee cord has a relaxed length of L - 20.0m. Assume that the cord obeys Hooke's law with k = 800N/m. a) Assuming that no energy is during the fall and the jumper stops 10m before reaching the water and calculate the height of the platform. (3 marks) (b) What is the total mechanical energy of the system? (1 mark) c) At what height does the jumper reach her maximum kinetic energy? Show your work (3 marks) (d) Assuming no energy is lost during the fall, what is the maximum velocity the jumper reaches during the fall? (1 marks) (e) If the jumper's mass was increased to 100kg, would the height at which she reached maximum velocity, or the maximum velocity change? Explain. (2 mark) a ) b ) Emech Page 10 King Physics (SPH 4U - Culminating Activity)

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