Question 263424
Voyager 2 traveled approximately 4.4 billion miles in 2.0 years. What was the average speed in m/s? 
I converted years to seconds...63072000 seconds for 2 years
= 6.3072E7 seconds
---------------------
4.4 billion = 4.4E+9
And that's miles, it asks for meters/sec
4.4E9 miles * 5280 ft/mile * 0.3048 m/ft = 7081.1136E9 meters
=~ 7.081E12 meters
-------------------
r = d/t = 1.1227E5 m/sec