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?

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Answer 1 · 2018-06-07T11:54:29

$11.05 m/s$ $"11.05 m/s"$

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

$Average speed = \frac{442 m}{40 s}$ $color(white)("Average speed") = "442 m"/"40 s"$

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

Answer 2 · 2018-06-09T04:58:59

$11.05$ meters per second

Average speed is given by the equation:

$bars=d/t$

where:

$d$ is the total distance traveled

$t$ is the total time taken

So, we get:

$bars=(442 \ "m")/(40 \ "s")$

$=11.05 \ "m/s"$