Chapter 4, Problem 23PE

A $5.00\times {10}^{-5}$ -kg rocket is accelerating straight up. Its engines produce $1.250\times {10}^7$ N of thrust, and air resistance is $4.50\times {10}^6$ 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.