Answer
$K = 2.16\times 10^{11}~J$
Work Step by Step
In part (c) we found that $~~v = 1.20\times 10^4~m/s$
We can find the kinetic energy:
$K = \frac{1}{2}mv^2$
$K = \frac{1}{2}(3000~kg)(1.20\times 10^4~m/s)^2$
$K = 2.16\times 10^{11}~J$
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