Accelerating Towards Idiocy

(After a lesson on Newton’s law of motions, specifically on things like what happens when you throw a rock of a cliff at some speed, the teacher asks the class to solve some problems. Note that you need to use acceleration due to gravity (commonly called “g”) to solve the problem. Its value is 9.81 m/s2 while it is common to approximate it as 10 to make the calculations easier. While the class is working on the problem:)

Student #1: “[Teacher], what is the value of g for this problem?”

(Before the teacher could answer:)

Student #2: “Ma’am, I calculated the g value as -28.”

Teacher: “If that was true, you would be flying off this planet and I would not have to deal with idiots like you.”