1. Two spaceships, creatively named "A" and "B", are initially at rest. Spaceship A has twice the mass of spaceship B. At time t=0, they both fire their engines, which both exert the same amount of force on the ships. The engines fire continuously until both ships have covered a distance d. a. Which spaceship has more kinetic energy after it covers distance d? Explain your answer. Hint: do NOT use the equation K=1/2 mv'! (10 points) b. Which spaceship has more momentum after it covers distance d? Explain your answer, Hint: do NOT use the equation p=mv! (10 points)