Question

A bungee cord stretches 17 meters and has a spring constant of 130 N/m. How much energy is stored
in the bungee?

Answer 1

Answer:

U = 18,785 J

Explanation:

Elastic Energy

Elastic energy is energy stored in an object due to a force that temporarily changes its shape, such as shrinking or stretching.

The elastic energy can be calculated as follows:

$\displaystyle U=\frac{1}{2}k(\Delta x)^2$

Where k is the spring constant, and \Delta x is the change in the size of the spring.

The bungee cord stretches \Delta x =17 m, and k=130 N/m, thus:

$\displaystyle U=\frac{1}{2}130(17)^2$

U = 18,785 J