# Error Calculation

1. Feb 3, 2010

### Precursor

The problem statement, all variables and given/known data

Derive an equation for the error in acceleration given the following formula: $$a = 2h/t^{2}$$

where a is acceleration, h is height, and t is time.

The attempt at a solution

I was able to come up with the following error equation for acceleration:

$$\delta a = a(\delta h/h) + 2t^{2}(\delta t/t)$$

Is this correct?

Thanks

2. Feb 3, 2010

### dacruick

Well I assume you've experimentally found height and time. so put the error of height in percentage of the height. and then there is a formula i cant remember for error of something squared. but find that, but it in percent as well. then all under a square root, add the square of your errors. then you will have a percent error of acceleration

3. Feb 3, 2010

### Precursor

The thing is that I'm not looking for percent error, I'm looking for $$\delta a$$