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# Quick question about math?

Okay, you know that math "experiment" when you tie the string on something that has mass and then let it swing. How is this related to math... Like... I don't get it, what is the conclusion of this?

### 2 Answers

- CheetahLv 71 decade agoFavorite Answer
I think you are talking about a pendulum.

It is really about conservation of momentum. The Smithsonian museum in Washington D.C. has a pendulum display to demonstrate the rotation of the earth (through conservation of momentum).

It's not so much about math, but physics. Laws of Motion - objects in motion tend to stay in motion unless acted upon an outside force (such as gravity).

The motion of the pendulum here on earth does follow an equation which is mathematically predictable. It is FM = A

where F is the initial force, multiplied by M which is the Mass, is equal to A which is the Acceleration. Here on earth the acceleration of gravity is 32 feet per second/per second. This means that when you fall, you fall at 32 feet the first second. The second second you fall at 64 feet per second. So in 2 seconds you have fallen 96 feet.