In the dangerous "sport" of bungee-jumping, a daring student jumps from a balloon with a specially designed elastic cord attached to his waist, as shown in Figure P5.77. The unstretched length of the cord is 25.0 m, the student weighs 675 N, and the balloon is 36.0 m above the surface of a river below. Calculate the required force constant (k) of the cord if the student is to stop safely 4.00 m above the river.
1 answer
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