Chapter 6.6, Problem 28ES

Assume that a Mars probe of mass $m=2.00\times {10}^3\text{ kg}$ is subjected only to the force of its own engine. Starting at a time when the speed of the probe is $\upsilon =1.00\times {10}^4\text{ m/s}$ , the engine is fired continuously over a distance of $1.50\times {10}^5\text{ m}$ with a constant force of $2.00\times {10}^{\text{5}}\text{ N}$ in the direction of motion. Use the work-energy relationship $\left(6\right)$ to find the final speed of the probe.