00:01
Okay, this problem is asking us to define what elastic potential energy is and to give some examples of different things that possess it.
00:09
So elastic potential energy is similar to gravitational potential energy and that they're both stored energy, which is what makes them both potential energy in the first place.
00:19
But elastic potential energy is different in that the energy stored as a result of applying force to deform an object that's elastic.
00:26
So the formula for elastic potential energy is given here, where k is a spring constant or any kind of constant depending on the context of the problem.
00:38
And delta x is the change in position.
00:40
So say you have a spring with a constant k of 0 .5, for example, and you're stretching it 1 inch.
00:47
So that would be delta x is 1 inch.
00:49
Your constant would be k.
00:50
And u is the potential energy.
00:52
And so there are a couple different materials that would be.
00:56
Examples of elastic material.
00:58
So for example, one of them is a rubber band.
01:01
And the way a rubber band works, i'm sure you know, is if you stretch it, you're able to stretch a rubber band two times, five times, maybe even 10 times the original length of the rubber band...