Distance Velocity Time in astronomy math/physics Q.?

Ashlyn

New member
Suppose two galaxies move away from each other at 6000 km/sec and they are 300 million (3.0 x 108) LY apart. If their speed has remained constant how long has it taken them to move that far apart? Express your answer in years.

This is what I have so far:

Velocity = 6000 km/sec
Distance = 300 million LY
Time=Unknown.

T= 3X10^8/ 6X10^3 = 50,000

Is it 50,000 light years, or how do I express this? I've never done this type of math before and this course had no math pre-requisite. So I am very lost.
 
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