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Carrotsticks' Extension 1 HSC 2013 Solutions (1 Viewer)

Carrotsticks

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Note, it'll take a bit longer than usual because I'm on my laptop, not on the desktop at home, so please bear with me =)
 

Lanxal

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Time to rock and roll. Our gratitudes, carroty! =D
 

Carrotsticks

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Nearly done with Q14! On the very last part now. After that, checking solutions.
 

lijincheng

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For that simple harmonic motion question, rather than proving by a=n^2x, i integrated it and expressed it in the form of Asin(nt+w) would i still get the mark? :L
 

kimjuliana

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I rearranged it to the form v^2= n^2[(a^2-(x-c)^2], where a is amplitude and c is centre of motion... Not sure if this makes it SHM though... :(
 

Carrotsticks

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Checking through my solutions, I see I made a small error on the parametrics. Quickly fixing that up now =)
 

andybandy

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for 13b)ii) i knew what to do but i wasn't getting the equation out right! ahhh!
 

Locus

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14biii) Would you lose any marks if you didn't show n=1,2,3 ... but did all the other steps, if so how many?
 

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