Recent content by marshall104

Sorry about that. Thanks so much for your help Tiny Tim!

Thanks Tiny Tim! Can I ask you another question? I have an answer I would like to have you go over it for me. Thanks :smile: Find the equation of motion and the natural frequency of the system shown (m and k1, k2, and k3 are known). (Hint: The equation of motion will have the formx&&...

o.k now I'm more confused than I was before. I was under the impression that I had to use polar coordinates to solve this problem? Where we came up with the fact that r’’ = r(Ɵ’)2…? I attached a photo of the problem. Can we start from the beginning again. There is no tangential acceleration...

So with that being said. I set up my polar coordinates, ur and utheta, and everything in utheta direction (tangentional) equals zero...? Right? Since the velocity u of the bar is constant that is why utheta equlas zero. Then the only thing I have to figure out is the ur direction for...

I'm still not totally sure what that means...or how it pertains to this problem...Thanks!

r double dot minus r*theta dot^2

radial will be zero? So I am thinking about this correctly?

[b]1. The collar P slides outward at a constant relative speed u along rod AB, which rotates counterclockwise with a constant angular velocity of 2π/3 rad/s. Knowing that r=10 in when θ=0° and that the collar reaches B when θ=90°, determine the magnitude of the acceleration of the collar P...

Homework Statement An oscillator with a mass of 600 g and a period of 1.20 s has an amplitude that decreases by 2.50% during each complete oscillation. If the initial amplitude is 6.40 cm, what will be the amplitude after 50.0 oscillations? Homework Equations How do I approach this...

I'm sorry. I'm trying to find T the orbital period

The figure shows two planets of mass m orbiting a star of mass M. The planets are in the same orbit, with radius r, but are always at opposite ends of a diameter. This is the equation eq. I used: mv^2/r=GMm/r^2+Gmm/(2r)^2 This is what I came up with but it is not the right answer. Where...

Yes those are the ones. What is it that I should be looking for when applying these equations? Is it just a matter of feasibility? Thanks, Mike

I'm in a physics 201 course and very confused about the kinematic equations. Is there anybody out there who can describe what each one means? Thanks, Mike