A 70 kg bungee jumper jump from the top of a 70 m high bridge and able to touch the water below. The bungee cord has a spring constant of 72.5 N/m, where the unstretched position is when ???? = 0. Using principle of work and energy, determine the bungee cord's relaxed length, ????, for this jump. If the resistance of the air were not present during the jumping, describe what happen to him?

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Relaxed length, ! Distance, s 0 Relaxed length, ! Distance, s 0