Spacecraft A is being overtaken by spacecraft B that is traveling at 0.40c relative to spacecraft A. When it is 1.5 x 10^6 m away, as measured in spacecraft A's frame, spacecraft B fires a missile directly at spacecraft A. The missiles travel at a speed of 0.70c relative to the ship that launches them.
A) How far away is spacecraft A when the missile is fired according to spacecraft B?
B) What is the speed of the missile with respect to spacecraft A's ship?
C) According to spacecraft A how long does it take between the launch of the missile and it's impact on spacecraft A?