A​ parachutist's elevation changes by -99 ft in 9 seconds. What is the change in the​ parachutist's elevation each​ second?

Answer 1

The change in elevation each second can be calculated by dividing the change in elevation by the time it took to change.

Change in elevation each second = Change in elevation / Time

Change in elevation = -99 ft
Time = 9 seconds

Change in elevation each second = -99 ft / 9 seconds

Change in elevation each second = -11 ft/second.

Therefore, the parachutist's elevation changes by -11 ft each second.