Answer:
153760000 J
Explanation:
Kinetic energy is the energy possessed by a moving object solely due to its motion.
You can get the K.E. of an object using the equation,
K.E. = (1/2)mv²
So you get, for submarine,
K.E. = (1/2)×8000000×6.2²
= 153760000 J = 0.153 GJ