# A hang glider dropped his cell phone from a height of 350 feet. How many seconds did it take for the cell phone to reach the ground?

##### 1 Answer

Jun 17, 2018

#### Explanation:

Assuming negligible air drag, it was in free fall (g = 32 ft/s^2) for the entire 350 feet. So we use the formula

Plugging in the data

I hope this helps,

Steve