Recent content by kepherax

I'm nearing the end of community college, 2 more semesters to go to finish up math and physics major classes. I took differential equations and physics 1 (mechanics) this semester - found ODE easy and intro mechanics challenging; I tend to do well in math classes, but am not the most talented...

I am able to solve this easily using energy conservation, but I'm curious how one would go about solving this using forces and torques?

Yeah, even when I use the variation of parameters method with f = e^2t, I get -1/5 e^2t as the particular solution, which works with the substitution... part of the process with Cauchy Euler is to first solve the homogeneous equation and then divide through to put in standard form for parameter...

I'm fine with this up to a certain point, but I'm not certain if I'm using the substitution correctly. After finding the homogeneous solution do I plug in x= e^t in the original equation and then divide by e^2t to put it in standard form before applying variation of parameters so f=1, or do I...

I set the pivot point to be where the beam meets the wall, the block on the left is the wall.

I think I understand but just want to check if I did this correctly, or if there is more to it...

I don't know why it won't let me edit this, but here is the problem and my attempt.

https://www.physicsforums.com/attachments/250905 I know the answer, but am not certain how they got Lsin(angle) for R?

Hiya. I'm an undergrad taking my first major's physics course in mechanics (calc based, but not much calc involved thus far), and I am fairly lost. Straight A's in calc 1-3, currently in differential equations math wise and doing well, but having problems with the physics course because it is...