The Energy Required to Accelerate a 1 $2.8 \times 10 ^ { 16 } \mathrm {~J}$

The energy required to accelerate a 1.0-kg mass to 0.50 c is

A) $2.8 \times 10 ^ { 16 } \mathrm {~J}$
B) $1.4 \times 10 ^ { 16 } \mathrm {~J}$
C) $2.8 \times 10 ^ { 16 } \mathrm {~kJ}$
D) $1.4 \times 10 ^ { 16 } \mathrm {~kJ}$