To find out how long it will take Julie to free fall 750 meters, we can use the given formula:
\[ t = \sqrt{\frac{2s}{9.8}} \]
Given that s = 750 meters, we substitute this value into the formula:
\[ t = \sqrt{\frac{2 \times 750}{9.8}} \]
\[ t = \sqrt{\frac{1500}{9.8}} \]
\[ t = \sqrt{153.06} \]
\[ t \approx 12.37 \, \text{seconds} \]
Therefore, it will take Julie approximately 12.37 seconds to free fall 750 meters.
