Newtonian Physics is something most people take back in high school or chose to skip and do something else in it's place. Why would it be useful to take it now that they are in college when it may not even apply to their major?
Newtonian Physics basically helps us describe even the most simplest phenomena in our world. Not only does it help us understand things like why we see a firework before we hear it, but it also demonstrates a lot of the math that we would otherwise think came out of thin air. Subjects like calculus and differential equations all start to make sense because they were created to help solve complex physics problems, whether the mathematicians want to admit it or not.
Most of the time Fluid Mechanics is a Course you have to end up taking with harder courses like Dynamics and Differential Equations. A question I've gotten multiple times is, should I focus on fluid mechanics more or less than my other classes?
My answer is that you should try to make time to do all your classes but if you're serious about becoming an engineer, Fluid mechanics is one of the most important parts of the curriculum. You can basically relate it to every field of engineering some way or another and yes, it is a course that's going to kick you in the teeth but you have to keep fighting and keep studying to get through it and eventually, you will learn how to appreciate it.
Mechanical Engineering is a very broad subject. How do you measure just how much you've actually learned and is it possible to learn everything.
This is a question that I often get from younger family members who are thinking about going to college to be an engineer but have heard that it is a difficult subject to study. What I always tell them is that Mechanical Engineering isn't about memorizing things like the laws of thermodynamics and Bernoulli's Equation; it's about learning how to problem solve. There is absolutely no way that you can possibly remember everything from every class as the semesters go on. Yes there are basics that you have to master but the real trick is learning how to research and develop answers to the worlds problems, all from starting from scratch.