CHAPTER SIXTEEN

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Sorry for the very slow update of this story. I am just finishing my long running novel here in Wattpad (since it's almost finish) so I need to focus there first then I can have my regular updates here. Thank you so much for your patience.
Advance apologies to the short and spoiled update but I hope you'll ebjiy this.

And I am congratulating myself for passing the Board of Licensure Examination for Professional Teachers and now I am a Licensed Professional Teacher (thank you so much for this Christmas gift, God!)! Yey! Party, party! (*^▽^)/










Make me stop then, Suzanne.




"A pendulum consists of a mass m at the end of a massless stick of length l. The other end of the stick is mass to oscillate vertically with a position given by..." nanatili ang titig ni Suzanne kay Archles habang sinusulat nito ang eksplenasyon nito sa report nito sa Physics sa whiteboard. "y(t) = Acos(wt), where A << l.

Sa hindi malaman na dahilan ay sa halip na makinig s'ya sa inuulat ni Archles ay nakatuon s'ya sa mukha nito. 

"It turns out that if weight is large enough, and if the pendulum is initially nearly upside-down, then it will, surprisingly, not fall over as time goes by. Instead, it will (sort of) oscillate back and forth around the vertical position. We can now explain why the pendulum doesn't fall over as well as we can find the frequency of the back and forth motion by this equation..." 

Malabo talagang walang magkagusto kay Archles. Bukod naman kasi sa gwapo s'ya, galing sa isang mayaman na pamilya at matalino ay mabait rin s'ya. Kaya walang duda na maraming nagkakagusto sa kanya dahil sa personalidad n'ya.

Hindi maiwasan ni Suzanne ang palihim na mapangiti sa iniisip. Ang hindi n'ya alam ay may pares ng mga matang nakatingin ngayon sa kanya at nakikita ang pagngiti n'ya. 

"Let theta (θ) be defined as shown. We'll use the Lagrarian method to determine the equation of motion for theta. Theta times l times m times y quantity of t is equal to theta Acos quantity of ωt, the position of the mass m is given by (X,Y)=(l sin θ, y+ l cos θ).

Willing na willing akong makinig sa lahat ng nakakabaliw na formulas sa Physics kahit abutin pa ng buong araw kung ganitong ang boses n'ya ang maririnig ko.

"Such is the case if we change the setup and simply have the pendulum lie flat on a horizontal table where the acceleration from the gravity is zero. In this limit where g is irrelevant, dimensional analysis implied that the frequency of the C oscillations must be a multiple of ω, because ω is the only quantity in the problem with units of frequency." 

Archles kept on explaining in his report and like a lovesick fool, Suzanne kept on listening to him with her eyes secretly sparkling for him. 

Hindi na nga n'ya pinansin ang pagkunot ng noo o ang seryosong pakikinig ng kanyang mga kaklase dahil sa pagkahaba-habang eksplenasyon sa pagsagot sa paggalaw ng inverted pendulum. 

"So that's how you solve the movement of an inverted pendulum. I am now opening this moment for clarification or equations. You may now raise your hand." 

Dumako agad ang mga mata ni Archles kay Mark na ngayon ay nakataas na ang mga kamay.
"Yes, Gosiengfiao?" 

Bahagyang kumunot ang noo ni Suzanne. Woah. Ganito ba magtawagan ang magkaibigan sa isa't isa? Hindi first name basis? Sabagay, parang mas formal din naman kung apilyedo. 

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