will mark brainliest if answer is correct

Answer:
72kJ
Explanation:
The formula of kinetic energy is as said:
[tex]KE = \frac{1}{2} mv[/tex] or, [tex]K = \frac{p^{2} }{2m}[/tex] where [tex]P = m * v[/tex]
Given that m = 1,000kg and v = 12,000kg, we have:
K = (12,000)² / 2(1,000)
K = 72,000 J or, K = 72 kJ.