12-26-2014, 04:23 PM
Whew I just did Just Dance. So tiring...
I think that's only the case if the object is being push in a sloping environment. What if I want to push it just horizontally? Do I use the same equation or use the alternative which is ∫ f • ds? (Integral of f times ds)
A little side note, but what does the d mean in ds? I also study some classical mechanics in school and we use f • s (Physics, Chem and stuff all in Science, but sadly now I'm in plant biology. And I hate plant biology. I want human biology). Does using a slightly different equation matter?
(12-25-2014, 08:24 PM)CarnivorousJelly Wrote: [ -> ]Caesar:
It includes cosθ because work can only be from force parallel to the distance. So, if you push a box up a hill by only using a horizontal force it's not only inefficient, but you haven't done a ton of work (force applied * horizontal distance from base of hill to crest of hill).
I think that's only the case if the object is being push in a sloping environment. What if I want to push it just horizontally? Do I use the same equation or use the alternative which is ∫ f • ds? (Integral of f times ds)
A little side note, but what does the d mean in ds? I also study some classical mechanics in school and we use f • s (Physics, Chem and stuff all in Science, but sadly now I'm in plant biology. And I hate plant biology. I want human biology). Does using a slightly different equation matter?