Solve the following question given below:
Question: Two rocket ships are racing toward Earth, as shown in the figure below. Ship A is in the lead, approaching the Earth at v1 = 0.78c and separating from ship B with a relative speed of 0.44c. As seen from Earth, what is the speed, v, of ship B?
Answer in c
Please show the all work for the calculation so I can understand what I'm doing. Thanks!