What do we call the work due to the change of velocity?

AI Thread Summary
The discussion centers on the terminology for work associated with a change in velocity, specifically whether it should be called acceleration work or kinetic work. Participants agree that there is no universally accepted term for this concept, with some suggesting "acceleration work" as a more specific descriptor. Kinetic work is acknowledged but considered broader, potentially encompassing more than just acceleration. Additionally, the conversation touches on rotational motion, where work is sometimes defined in the context of rotational dynamics. Clarity in definitions is emphasized to avoid confusion in academic contexts.
ninaricci
Messages
18
Reaction score
0
Need Help! urgent

I am taking a thermodynamics course and actually i am facing a problem
what do we call the work due to the change of velocity?
is it acceleration work or kinetic work.
i have contacted two instructures in the college and there answers were opposite to each other ... i need your help to know the right definition
looking forward to hearing from you
best wishes :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused: :confused:
 
Physics news on Phys.org
What's wrong with simply calling it work?
 
Well, a change in velocity is acceleration, so I guess it would be acceleration work. Although it's also kinetic, but kinetic would probably encompass more than just 'accelertation work'...AW is the more specific of the two.
 
To the best of my knowledge there is no unique term for this concept. If you are referring to it by a special term be sure you define that term at some point. As long as you stay away from terms used for other quantities and your definition is clear you should be fine.
 
Hi
regarding the question i have posted, actually it was aquestion in one of the quizez i have taken...
 
I would have to agree with Integral in that there is no specific and unique term associated with work due to accelerated motion. The only exception that may be argued is the work done due to rotational motion. An object moving in a circle at a constant speed is by definition accelerating due to a changing velocity. Such references are sometimes referred to as rotational dynamics.
 
Thread 'Variable mass system : water sprayed into a moving container'
Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
I was thinking using 2 purple mattress samples, and taping them together, I do want other ideas though, the main guidelines are; Must have a volume LESS than 1600 cubic centimeters, and CAN'T exceed 25 cm in ANY direction. Must be LESS than 1 kg. NO parachutes. NO glue or Tape can touch the egg. MUST be able to take egg out in less than 1 minute. Grade A large eggs will be used.
Back
Top