Question

Then, the dot ran from −66 to −17. What distance did it cover? If this run took the dot 7 minutes, what was its average speed?

Answer 1

ANSWER

The average speed is 7m/s.

EXPLANATION

If the dot ran from -66 to -17, then the distance covered is

$| - 17 - - 66| = 49$

The average speed

$= \frac{distance \: covered}{time \: taken}$

Substitute

$= \frac{49}{7}$

Simplify;

$= 7m {s}^{ - 1}$