Simple Harmonic Motion (1 Viewer)

[taggs-sasuke]

Can you please explain this to me?

I'm learning Simple Harmonic Motion and I'm stuck...

x = acos(nt + @)

v = -ansin(nt + @)

So:

x^2 + v^2/n^2 = a^2cos^2(nt + @) + a^2sin^2(nt + @) = a^2

But where did a^2 come from?

Thanks!

 

[Uncle]

sin²x + cos²x = 1

go use latex code ffs.

 

[taggs-sasuke]

Oh! Thanks.

go use latex code ffs.

?

 

[Uncle]

There is a button called "Launch LaTeX Equation Editor" on this page or any page with Mathematics.
Use it in the future, it's proven to be a success so far.

 

[taggs-sasuke]

Thanks!

 

[taggs-sasuke]

What do we do after typing the equation???

 

[Uncle]

put the code between two tags [maths ] and [/maths ] respectively without spaces.
use new tags for each line.
or browse other threads and see how others do it.

 

[taggs-sasuke]

Thanks. I can do it now.

 

[Aquawhite]

Also, you may want yo make sure you can derive acceleration from dislacement and velocity.

i.e. but you established earlier that

...

Just something handy, but you should already know it if you learning it. Also, that the formula is very helpful and often needed to solve problems.

 

[taggs-sasuke]

Thanks