HSC Extension 2 Mathematics Predictions / Thoughts (1 Viewer)

[black.mamba]

for 13 a though, n=6? right?

 

[jakurian]

So the ‘3’ came from the net mass of 2 to the right divided by the total mass of 6’in the system

would I get one mark if I had everything but the 3 in the denominator

 

[Speed’o’sound Sonic]

for 13 a though, n=6? right?

That’s what I thought! Fingers crossed!

 

[Speed’o’sound Sonic]

would I get one mark if I had everything but the 3 in the denominator

That would seem fair. If it was out of 2 you wouldn’t get a 0 for doing nearly all the working

 

[black.mamba]

also what was the amplitude, i had 2root3

 

[Fabrizio]

So the ‘3’ came from the net mass of 2 to the right divided by the total mass of 6’in the system

Big brain moment ffs. Looks like the only marks I have lost are from me being very dumb

 

[Speed’o’sound Sonic]

Big brain moment ffs. Looks like the only marks I have lost are from me being very dumb

All good mate from what it sounds like not many people seemed to understand that question

 

[hscisbotshit]

also what was the amplitude, i had 2root3

i got x=2root3cos(6t)+root3 im pretty sure

 

[Speed’o’sound Sonic]

i got x=2root3cos(6t)+root3 im pretty sure

That’s what I got too!

 

[Xanthi]

So the ‘3’ came from the net mass of 2 to the right divided by the total mass of 6’in the system

I equated to find tension in what was the longest bash ever for 2 marks.

 

[black.mamba]

i got x=2root3cos(6t)+root3 im pretty sure

yes yes please be right i need to see the paper to be sure but I'm begging that its right

 

[shashysha]

amplitude was 2root3 but i read the question wrong and thought it said max displacement from centre not centre of motion omg end me

 

[black.mamba]

amplitude was 2root3 but i read the question wrong and thought it said max displacement from centre not centre of motion omg end me

ahhh rip thats so unlucky

 

[Speed’o’sound Sonic]

amplitude was 2root3 but i read the question wrong and thought it said max displacement from centre not centre of motion omg end me

Yikes that is bad luck did anyone think do put a plus/minus before the cosine function? I mean technically the ‘max displacement’ could have been up or down? I considered it but decided not to

 

[shashysha]

hopefully an 85-87 raw is enough to secure the e4 but im doubting that rn lol

 

[Speed’o’sound Sonic]

hopefully an 85-87 raw is enough to secure the e4 but im doubting that rn lol

Definitely wth?! An 85-87 raw is insanely good and would have an E4 in the bag with ease

 

[black.mamba]

because displacement is a vector quantity, unlike speed or distance, max means just + i think

 

[black.mamba]

also does anyone have access to the paper, and if they do, could they share it?

 

[shashysha]

Definitely wth?! An 85-87 raw is insanely good and would have an E4 in the bag with ease

haha hopefully but general consensus is that most people found it pretty simple but scaling is out of our control so no point dwelling on it anymore!

 

[Fabrizio]

Yikes that is bad luck did anyone think do put a plus/minus before the cosine function? I mean technically the ‘max displacement’ could have been up or down? I considered it but decided not to

Displacement has direction so you would have to. I did plus