Problem-Solving Strategies (Problem 23)

A $5.00\times {10}^5\text{-kg}$ rocket is accelerating straight up. Its engines produce $1.250\times {10}^7\text{ N}$ of thrust, and air resistance is $4.50\times {10}^6\text{ N}$. What is the rocket’s acceleration? Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton’s laws of motion.