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