ANSWER

Step-by-step explanation
To find the kinetic energy of the rocket, apply the formula:

where m = mass; v = velocity
To find the mass of the rocket, divide its weight by the acceleration due to gravity:
![\begin{gathered} m=(W)/(g) \\ m=(1407.48)/(9.8) \\ m=143.62\operatorname{kg} \end{gathered}]()
To find the velocity of the rocket, divide the distance traveled by the time taken:

Hence, the kinetic energy of the rocket is:
