Question

The variable d models drone's distance from the safe zone (in meters) t seconds after the drone started flying. D=-5t+4. What is the speed of the drone?

Answer 1

v = 5 m/s

Explanation:

The variable d models drone's distance from the safe zone (in meters) t seconds after the drone started flying is :

d = -5t+4

We need to find the speed of the drone. Speed is the rate of change of position.

`v=(dd)/(dt)\\\\=(d)/(dt)(-5t+4)\\\\v=-5\ m/s`

Hence, the speed of the drone is 5 m/s.