Answer:
weapons
Step-by-step explanation:
they needed weapons for fighting the opponent
Hey there!
Use this formula:

Remember this formula.
Now, let's solve the given problem.

Hope this helps you!
~Just a joyful teen

Hope this helps and have a fantabulous day! :)
We were given the distance, d as a function of time, t.
.
To find
, we put
, in to

This implies that,


This means that in 15 seconds light covers a distance of 4,500,000 kilometers