1. The problem statement, all variables and given/known data A spaceship is powered by a matter-antimatter reactor. Suppose you have a 23000-metric-ton spaceship and wish to accelerate it to 0.03 c. What is the total mass of matter and anti matter required, assuming a 100 % efficient engine. 2. Relevant equations Really not sure about this question, but thinking that E=mc^2 and F=ma will be used somewhere 3. The attempt at a solution Not sure how to approach this problem, any help would be greatly appreciated.