Recent content by Curious_Student

Thanks man.

But still as said, it has no affect on his velocity, as long as he swim towards the other bank at the same speed he should get there at the same time not depended on how speed is the water flow, it will only affect the horizontal dislocation. won't you agree?

Thanks. So if a swimmer starts at certain velocity and crosses a river when his motion is perpendicular to the water's flow, his velocity will remain the same all along and he wouldn't need to spend additional energy to keep on constant velocity. Do we agree? Here, is it a right assumption...

If route perpendicullar forces supose to have no affect, why isn't this the case when somebody tries to cross a river? the motion is perpendicullar when water speeds aprox. at the same direction.. what am i missing?

ok, thank you

I do have the mass of the bob, but it cancles out: so why do i need it? and how to deal the length if its constant? If I understand you right, you suggest to add Fm to dominator as: T= 2π√[l/(g+Fm)] like I've mentioned and to rescue Fm right? but where should the distance from the magnet be...

I see, but I am sorry, still don't get it .. how to find the magnetic force and its' vertical distance relation as a function of the period time? all i have is the period time and distance correlation measurements.. Can you be more specific please? and yes I would take the magnet force as...

I have measurements of period time and distances that's all: T (sec) D (m) 0.9 0.008 0.91 0.009 0.97 0.01 0.98 0.011 1.06 0.012 I thought about adding the magnetic force like: T=2π*√l/(g+x) but have no clue how to integrate the distance there, I don't know even how to start...