NTesla's latest activity

You are completely missing the point that I made regarding writing justifications and reminders if one is not going to do that.

If I may interject… I think that in Post #59, @kuruman is considering the case where the vector C and the axes are all rotated through...

A good physicist ought to use proper symbols/notations/units everywhere, especially when writing a book, or when working on a project or...

You don't have to repeat, I am with you 100%. I was expressing my doubts (in counterpoint to my "as it should be") about the...

That's what I'm talking about. So precise and clear. Appreciate it.

Let's do it formally and top down. I will use boldface for vectors. The net force is always the sum of the restoring and damping force...

I know that component of a vector is not a vector. But if you happen to use vector all throughout your writings and then resort to using...

Yes i agree. The notation must be uniformly applied throughout. Otherwise it creates unnecessary confusion. The book uses bold letters...

Yes i agree. If done appropriately. One sure way of doing it appropriately would have been use of vector sign. I very much appreciate...

I think part of the problem with writing Newton's second law in this case is that the velocity, which is not normally part of an FBD, is...

I understand what you've written. I had some inclination from the very beginning that the writer of that equation in the book meant a...

In that expression, ##f_{fric}## has been taken as ##-bv##. Since, damped force will always be opposite to the velocity vector...

Were you referring to this v? (kindly see the screenshot): i understand what a scalar quantity is, but did you mean something else when...

Seems to me your whole confusion comes from taking v to be a magnitude whereas in the equation you quote in post #1 it is a signed scalar.

Yes. No. You are still missing the point that ##\gamma## is the factor in front of ##\dot x## in the differential equation when the...