Kinetic Energy: How much energy would be required to accelerate a 77-kg professor from rest to 90% the speed of light? (c = 3.0 × 108 m/s)

A. 1.6 × 1019 J
B. 2.1 × 1019 J
C. 9.0 × 1019 J
D. 2.8 × 1019 J
E. 3.5 × 1019 J


Answer: C

Physics & Space Science

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