# Maths Ext 2 Predictions/Thoughts (1 Viewer)

#### notme123

##### Well-Known Member
but those werent initial conditions for memory
ye when x = 0, v=8 and x=5.5 which wasnt really needed until part 2

#### Siwel

##### Active Member
ye when x = 0, v=8 and x=5.5 which wasnt really needed until part 2
thought you could only do definite integrals with intial conditions lol

#### notme123

##### Well-Known Member
thought you could only do definite integrals with intial conditions lol
oh ye you can do it whatever as long as the variables match

#### tito981

##### Well-Known Member
what do you guys thing 84 will scale to

#### Siwel

##### Active Member
oh ye you can do it whatever as long as the variables match
just weird i made a displacement eq and when differentiated and rearranged it made the other eq

#### Anaya R

##### Well-Known Member
How did you guys do 16a?

#### JesusChriiii

##### Member
The second part of the slope question, i forgot the theory behind it, was it just when the forces acting upon the object = 0?

#### O01x

##### Active Member
Would you guys say this year was harder or easier than 2016 HSC Ext 2

#### Jojofelyx

##### Well-Known Member
Would you guys say this year was harder or easier than 2016 HSC Ext 2
i mean the course content is completely different, theres no way the new syllabus content even comes close to the schite they did 2019 and prior lol

#### Siwel

##### Active Member
The second part of the slope question, i forgot the theory behind it, was it just when the forces acting upon the object = 0?
yeah believe a=0

#### luminol

##### New Member
god when i saw one question take up an entire page, that scared me. at least during reading time.

#### notme123

##### Well-Known Member
god when i saw one question take up an entire page, that scared me. at least during reading time.
ye ik the volumes question was such a waste of marks

#### JesusChriiii

##### Member
thx to the dude who provided the copy of the paper. kinda thrown off by this m/c a bit. Ended up picking C in the end just felt like it looks like a regular projectile motion graph.....probs got it wrong tho, anyone got any ideas?

#### CM_Tutor

##### Moderator
Moderator
thx to the dude who provided the copy of the paper. kinda thrown off by this m/c a bit. Ended up picking C in the end just felt like it looks like a regular projectile motion graph.....probs got it wrong tho, anyone got any ideas?View attachment 33774
It's D. It can't be A or B as the particle will not continue along the path AB. It isn't C as the acceleration will result in a decreasing speed, whereas D has an increasing speed, as required.

#### JesusChriiii

##### Member
It's D. It can't be A or B as the particle will not continue along the path AB. It isn't C as the acceleration will result in a decreasing speed, whereas D has an increasing speed, as required.
oh shoot, thanks anyways !

#### luminol

##### New Member
It's D. It can't be A or B as the particle will not continue along the path AB. It isn't C as the acceleration will result in a decreasing speed, whereas D has an increasing speed, as required.
Oh my god ahaha i changed my answer from d to c since i interpreted it as saying that the speed of the vector was increasing and it had to remain at constant speed in order for UCM to occur rip

#### Alistruggles

##### Member
i'm honestly super happy! i genuinely thought i was going to be at risk of getting under 30 raw because of how little i've studied due to low mental energy + moreso feeling really sick on saturday and sunday which is literally THE worst case scenario as a last minute crammer. for perspective, i got to looking at the vectors syllabus for the first time since trials at 11:30am this morning...

but i could actually do loads of the questions!!!! i think there's a good chance that i passed uni here i come