A Space Tow Barge Pushes on a Spaceship with a Rest

Multiple Choice

A space tow barge pushes on a spaceship with a rest mass of 15,000 kg and accelerates it from a speed of 0.600c to a speed of 0.700c. How much work does the tow barge have to do to accomplish this?

A) 1.35 × 10²⁰ J
B) 2.03 × 10²⁰ J
C) 2.70 × 10²⁰ J
D) 5.42 × 10²⁰ J
E) 8.78 × 10¹⁹ J