How was it?

[rubiks]

i got 100Nm for the spring constant, and i wrote 0J on the next one cos i didn't know how I would show working out to that question. just said that all energy is conserved, changes into other forms of energy blah blah blah

[Twenty10]

And I put 0J aswell...I hope to God I'm right.

this... completely frkin confusing. made me go back and change my spring constant to 100 ...will i get a mark for having the right answer then crossing it out?

[coletrain]

Momentum is conserved regardless of whether the collision is inelastic or not. And I spent my last 15 minutes on that 0J vs4J spring question >.< Omg like the principles don't match the calculations.

what did you get for K? because my calculations were -8J[GPE]+8J[Spring]

'

k = 50N/m

If you use F = kx you get k = 50
If you use Us = 0.5kx^2 you get k = 100

I would have got this wrong if the same question hadn't been on CSE 2010 lol

yeah i got this
what did u get for the question after this, the change in energy?

[mkl3]

what did the circuit look like

[coletrain]

i got 4J, can some explain how they got 8J?

[rubiks]

my notes said to avoid using F=kx, so I used F=.5kx^2 and got 100

[googoo]

not too hard. itute has the answers up.

[coletrain]

what did the circuit look like

the final electronics question?

[Greggler]

i wonder how the hell i got 1J for the spring one lol. cant even remember what i did.

although i remmebr to f=kx to find spring constant. lol, like kyzoo after doing cse2010 i only ever find spring constants with f=kx haha

[kyzoo]

Why would there be discrepancy? It said nothing about loss to anything...

EDIT: Yeah. For structures:
1.D
2.B
3.C
4.D
5.C
6.B
7.D
8.A
9.C
10.D
11.D
12.B

=/ I don't remember what I put down for structures, only that there were no confusing hard questions in there.

Momentum is conserved regardless of whether the collision is inelastic or not. And I spent my last 15 minutes on that 0J vs4J spring question >.< Omg like the principles don't match the calculations.

what did you get for K? because my calculations were -8J[GPE]+8J[Spring]

'

k = 50N/m

If you use F = kx you get k = 50
If you use Us = 0.5kx^2 you get k = 100

I would have got this wrong if the same question hadn't been on CSE 2010 lol

yeah i got this
what did u get for the question after this, the change in energy?

I put down 4J because that's what the maths said, but I have no idea what the correct answer is maent to be -.- I spent like 15 minutes trying to figure out if there was any trick in the wording and I couldn't decide if them saying "total energy" instead of "total mechanical enregy" was meant to be a trick or not

[rubiks]

not too hard. itute has the answers up.

can you link us to it?

[m@tty]

Momentum is conserved regardless of whether the collision is inelastic or not. And I spent my last 15 minutes on that 0J vs4J spring question >.< Omg like the principles don't match the calculations.

what did you get for K? because my calculations were -8J[GPE]+8J[Spring]

'

k = 50N/m

If you use F = kx you get k = 50
If you use Us = 0.5kx^2 you get k = 100

I would have got this wrong if the same question hadn't been on CSE 2010 lol

Serious? Where does the energy go then ?? ?

[Twenty10]

not too hard. itute has the answers up.

how do u access them?

[taiga]

I'm pretty sure it was 4J, I put 0 though Consequential getting the wrong spring constant by equating energies rather than using Fx.

Multichoice motion was ABB i'm pretty sure of that. 64m/s for the final speed. I can't remember what the distance I put was though =\ I don't think I put 63 though...

I got different answers to matty for multichoice though. That's based on memory.

[Blakhitman]

lol error establishing database when trying to get into Itute. Must be all the students checking if they have solutions up.