KE = 1/2 mv^2

Initial Kinetic Energy:

KE = 1/2 (1.5x10^4 kg)(5200m/s)^2

KE = 2.028 x 10^11 J

Final Kinetic Energy:

KE = 1/2 (1.5x10^4 kg)(11580 m/s)^2

KE = 1.006 x 10^12 J

Change in Kinetic Energy

Final Kinetic Energy - Initial Kinetic Energy = Change in Kinetic Energy

1.006 x 10^12 J - 2.028 x 10^11 J = 8.032 x 10^11 J