Kinetic Energy: A space barge pushes on a spaceship with a 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 barge have to do to accomplish this? (c = 3.00 × 108 m/s)
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
Answer: B
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