演唱：沈言澈 作词：化学之国、沈言澈 作曲：化学之国 Come on discuss with me If you have this idea Just so I can analyze how to solve it with you If you are learning physics for the first time Plus you study science Then you should listen to the following knowledge If you want to know how to lift a giraffe You have to do a force analysis before you can act If you don't know how to do stress analysis Then I'll introduce you to the physical force The most important force is gravity gravity gravity Its stress direction is always downward To get the answer force analysis is needed first Because this is the essence of physics problems The application of physics is infinitely extensive So this is also a relatively rigorous discipline Come on the force analysis is finished The next step is to decompose the force This is also part of the essence so we must do it in place If you can't understand what I'm saying Plus you don't have a good foundation Then I'll explain this content to you Listen carefully to the next steps That is to build a coordinate axis in the direction of motion This is the point so don't forget The most important thing is to decompose all the forces This also involves some calculations calculation It's actually a trigonometric function To get the answer force analysis is needed first Because this is the essence of physics problems The application of physics is infinitely extensive So this is also a relatively rigorous discipline The lever principle seems to have no effect on giraffes Unless you have a PhD in calculus for ten years Otherwise you can do it as I say In fact there is nothing difficult but some calculations Even if you lift the elephant you still use the same method force analysis force analysis force analysis force analysis What's more of do force analysis on giraffes To get the answer force analysis is needed first Because this is the essence of physics problems The application of physics is infinitely extensive So this is also a relatively rigorous discipline To get the answer force analysis is needed first You can even pull an elephant as long as you know the steps