the figure or picture just shows a guy jumpingno numbers or figures are in it In

Question

the figure or picture just shows a guy jumpingno numbers or figures are in it In the dangerous ^''sport^'' of bungee-jumping, adaring student jumps from a hot-air balloon with a speciallydesigned elastic cord attached to his waist, as shown in the figurebelow. The unstretched length of the cord is 24.0 m, the student weighs 720 N, and the balloon is 36.0 m above the surface ofa river below. Calculate the required force constant of the cord ifthe student is to stop safely 5.00 m abovethe river. 1 Your response differs from the correct answerby orders of magnitude. N/m the figure or picture just shows a guy jumpingno numbers or figures are in it

Explanation / Answer

   in the given problem for simplicity let usassume that    PEg = 0 at the level of therever    then we get that    yi = 36.0 m    yf = 5.00 m    the jumper falls 31.0 m and the cordstreches 7.00 m    between the balloon and the level where thediver stops momentarily the conservation gives that    (KE + PEg +PEs)f = (KE + PEg +PEs)i    0 + (720 N) (5.00 m) + (1 / 2) k (7.00m)2 = 0 + (720 N) (36.0 m)    solve for k    k = ......... N / m    0 + (720 N) (5.00 m) + (1 / 2) k (7.00m)2 = 0 + (720 N) (36.0 m)    solve for k    k = ......... N / m

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