Question

Earth orbits around the Sun at an average speed of 30 km/s. How far does the Earth move in a year (3.16 x 107 s) as it revolves around the Sun? Express your answer in kilometers using the correct number of significant figures

Answer 1

Answer:

$d=v*t=(30\frac{km}{s})(3.16x10^{7})=9.48x10^{8}km$

Explanation:

Our knowable variables are velocity and time

$v=30 \frac{km}{s}$

$t=3.16x10^{7}s$

We know that $v=\frac{d}{t}$

So, with the data that we have we can calculate distance

$d=v*t=(30\frac{km}{s})(3.16x10^{7})=9.48x10^{8}km$