Question

A bungee cord with a spring constant of 800 stretches 6 meters at its greatest displacement. How much elastic potential energy does the bungee cord have? The bungee cord has 9600 ⇒ 14,400 J of elastic potential energy.

Answer 1

Elastic potential energy is given by formula

`U = (1)/(2) kx^2`

here we know that

`k = 800 N/m`

`x = 6 m`

Now using above formula we have

`U = (1)/(2)(800)(6^2)`

`U = 14400 J`

So elastic potential energy in the chord is 14400 J