# Calculation of free fall g

1. Feb 28, 2009

### DERRAN

1. The problem statement, all variables and given/known data

Determine the value of 'g'

2. Relevant equations
Anything

3. The attempt at a solution
I only know of the pendulum method.
Can someone please show me of other methods to calculate g without the use of fancy equipment such as a picoscope.

2. Feb 28, 2009

### Gib Z

The pendulum method is generally the most elementary method that gives a reasonably accurate result quite easily.

Another method is to drop a ball from a known height, h meters, and to measure the time it takes to fall to the ground. By elementary equations of motion, we find

$$s= 1/2 gt^2$$ and hence we can easily determine a value of g from this.

Be sure to minimize air resistance for a decent result.

3. Feb 28, 2009

### DERRAN

Thanks

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