Question

Treat the "bungee" as an ideal spring and the student as a 2.1-meter rod with all the mass at the midpoint. This particular student desires to stay dry. What is the minimum spring constant of the "bungee" that will allow the student to get as close as possible to the water but still stay dry

Answer 1

Answer: Hooke's law states that the force of a spring is equal to the spring constant multiplied by the displacement value x.

Explanation:

From hooke's law F = -kx where, I = spring constant, F = total force exerted, x= displacement, g =9.81, ×=2.1, M = mass

F = -kx

K = F/x

K = mg/x

K= 9.81M/2.1 = 4.67M Nm

The minimum bungee constant that will allow the student to get as close as possible is K = (4.67 * mass)Nm