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1. If T= 2pi sqrt((h^2+k^2)/gh), how can i rearrange it to get y=mx+c
2. (Original post by Ayaz789)
If T= 2pi sqrt((h^2+k^2)/gh), how can i rearrange it to get y=mx+c
y = mx + c refers to the proportionality (maybe you have recognized that?). So everything what you have to do is to rearrange your equation T= 2pi sqrt((h^2+k^2)/gh) to get the proportionality of simple harmonic motion.
3. (Original post by Kallisto)
y = mx + c refers to the proportionality (maybe you have recognized that?). So everything what you have to do is to rearrange your equation T= 2pi sqrt((h^2+k^2)/gh) to get the proportionality of simple harmonic motion.
Thanks for the help but whats the x component? We square both sides first then?
4. (Original post by Ayaz789)
Thanks for the help but whats the x component? We square both sides first then?
presume this is for a uniform rod type compound pendulum...

I definitely would
have a think about what's constant and what's going to be variable?

5. (Original post by Ayaz789)
Thanks for the help but whats the x component? We square both sides first then?
When it is asked for proportionality, the graph is linear. in y = mx + c, x is the variable which increase the left side of the equation, so y. m stands for the slope and c is the y-intercept. All what you need is to rearrange the equation that this linear property of proportionality comes out. To square on both sides is the beginning.
6. (Original post by Kallisto)
When it is asked for proportionality, the graph is linear. in y = mx + c, x is the variable which increase the left side of the equation, so y. m stands for the slope and c is the y-intercept. All what you need is to rearrange the equation that this linear property of proportionality comes out. To square on both sides is the beginning.
So i get T^2=4pi^2((h^2+k^2)/gh)
Then what do i do
7. (Original post by Ayaz789)
So i get T^2=4pi^2((h^2+k^2)/gh)
Then what do i do
Go further. Those are my steps:

T² = 4pi²(h² + k²)/gh (to summarize)
= 4pi²h² + 4pi²k²/gh
= 4pi²h + 4pi²k²/g (to factorize)
= 4pi²(h + k²)/g

For g = constant, the formular and the graph of it should be linear after y = mx + c.

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