Any other questions that I have on the subject are not really fitting in this thread and I believe my initial question has been answered.
Thank you @Ibix , @Delta2 and @jbriggs444 for you answers!
@Delta2
Well the definition of Work, Power and Velocity are such that the math tell us that not or something else.
Oops, i wanted to propose P = F * 2v, for example, for that units are still valid.
I am not sure what you mean here. Usually when we talk about unit conversion we talk about...
@Delta2 Oh, I did not. So the formula ##P = F \times \nu## means, in non-scientific terms, that the difficulty of applying a force (in the same direction as the object is moving) on a moving object is proportional to its speed?
That would make sense, as I find it more difficult to accelerate a...
@Delta2 Yes, I see, or mainly believe, that the math checks out, but i don't intuitively understand how I should take the speed of the objects into account.
@jbriggs444 Maybe I have a problem with the notion of 'work' then.
I understand that the jug of milk do not gain any energy at being held at arm length.
I still am a bit blurry on these notions. For example, if the human always applies a constant force on the jug to oppose the gravity, it does...
I failed to use the quoting tool, so I'll quote by putting in italic.
No. The "direction of motion" thing comes in because if a body is constrained to move in one direction I can apply a force at an angle and have to work harder to achieve the same effect because I'm wasting energy. For...
Mentor's note: Moved from HW for a better fit
Homework Statement:: A joule is defined as "the energy transferred to an object when a force of one Newton acts on that object in the direction of its motion through a distance of one meter."
Explain this definition.
Relevant Equations:: 1J = 1N.m...