# Three kids in a parking lot launch a rocket that rises into the air along a 442-m long arc in 40 s. What is the average speed?

Jun 7, 2018

$\text{11.05 m/s}$

#### Explanation:

$\text{Average speed" = "Total distance"/"Total time}$

color(white)("Average speed") = "442 m"/"40 s"

color(white)("Average speed") = 11.05\ "m/s"

Jun 9, 2018

$11.05$ meters per second

#### Explanation:

Average speed is given by the equation:

$\overline{s} = \frac{d}{t}$

where:

• $d$ is the total distance traveled

• $t$ is the total time taken

So, we get:

$\overline{s} = \left(442 \setminus \text{m")/(40 \ "s}\right)$

$= 11.05 \setminus \text{m/s}$