# Problem 2-1(c) Average Speed - Part 3 - B

Determine the average speed in metres per second. Express the final answer in scientific notation using the correct number of significant digits.
(C) The moon takes $27.3$ days to complete one orbit around the earth. The average earth-moon distance is $\mathrm{3.84 \times 10^5\; km.}$

Correct!

Therefore the distance the moon travels in one orbit is:

(A)   $2.413 \times10^9\; m$

(B)   $2.413 \times 10^6\; m$

(C)   $2.413 \times 10^{12} \;m$