work-energy theorem 功能原理 ; 功能定律 ; 能定理
Work-kinetic Energy Theorem 功 ; 功动能定理
Theorem of work and energy 功能原理
Work-mechanical energy theorem 功能原理
work-energy theorem for system 系统的动能定理
You get exactly the same result, and I find this somehow more pleasing to use the work-energy theorem.
会得到完全相同的答案，我觉得用功能定理，会更加的简洁。
Exactly the same idea, - and if you want to apply the work - energy theorem, of course, you will get exactly the same result.
完全一样，如果你想套用-，功能定理，会得到，完全相同的答案。
I would say, "Hey, why not apply the work-energy theorem?"
我会说，为什么不用，功能定理？
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