How was it?

[fdsfsgdfgdf]

I got ABB for the graphs question

and LOL my calculator was in radians moed so i got 6.3 degrees for the banked curve one even though I had the correct working out

And I am really really confused about the 0J vs 4J question. I got 4J, but physics teacher says 0J =/ Such a confusing question =/

And haha I was going really slow at first...I saw i was at question 8 for motion when 30 minutes already passed >.< So I quickened up and finished with 20 mins to go lol...then i spent the last 20 minutes checking motions questions i had asterixed (there weren't really any contentious question in electricity or strctures)

Is it 0J!!! Damn!!!!!!!!!!! I don't get why the graph is B for last one?

in my text book it says in a inelastic collision the KE is converted but momentum is conserved. lucky i read the book this morning

[sasha]

pretty sure the projectile motion was around 63m

[Cthulhu]

I dont suppose anyone has a copy of the exam?

[kyzoo]

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.

[curious111]

The projectiles one confused me for a sec, when i calculated the final vertical velocity to be the EXACT same as the distance lol (63.25). Then i realised it makes sense because the initial velocity was 10m/s horizontal and the accelration was obviously 10.

So yeah, 63.25 m, and 64.something for the final velocity.

[sasha]

The projectiles one confused me for a sec, when i calculated the final vertical velocity to be the EXACT same as the distance lol (63.25). Then i realised it makes sense because the initial velocity was 10m/s horizontal and the accelration was obviously 10.

So yeah, 63.25 m, and 64.something for the final velocity.

yea haha confused me for a sec aswell, but the horiztonal velocity was 10m/s

[kenhung123]

I got ABB for the graphs question

and LOL my calculator was in radians moed so i got 6.3 degrees for the banked curve one even though I had the correct working out

And I am really really confused about the 0J vs 4J question. I got 4J, but physics teacher says 0J =/ Such a confusing question =/

And haha I was going really slow at first...I saw i was at question 8 for motion when 30 minutes already passed >.< So I quickened up and finished with 20 mins to go lol...then i spent the last 20 minutes checking motions questions i had asterixed (there weren't really any contentious question in electricity or strctures)

Is it 0J!!! Damn!!!!!!!!!!! I don't get why the graph is B for last one?

in my text book it says in a inelastic collision the KE is converted but momentum is conserved. lucky i read the book this morning

I thought momentum is conserved despite elastic or not and kinetic energy is not conserved in inelastic collisions

[fdsfsgdfgdf]

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]

[Greggler]

k yeah

i kept ending up with 63.25 or sometrhing on my calc for both questinos and i was like....... this cant be right lol but i coudltn think of any other method to use

[Blakhitman]

I got ABB for the graphs question

and LOL my calculator was in radians moed so i got 6.3 degrees for the banked curve one even though I had the correct working out

And I am really really confused about the 0J vs 4J question. I got 4J, but physics teacher says 0J =/ Such a confusing question =/

And haha I was going really slow at first...I saw i was at question 8 for motion when 30 minutes already passed >.< So I quickened up and finished with 20 mins to go lol...then i spent the last 20 minutes checking motions questions i had asterixed (there weren't really any contentious question in electricity or strctures)

Is it 0J!!! Damn!!!!!!!!!!! I don't get why the graph is B for last one?

in my text book it says in a inelastic collision the KE is converted but momentum is conserved. lucky i read the book this morning

I thought momentum is conserved despite elastic or not and kinetic energy is not conserved in inelastic collisions

Exactly why it was B.

[m@tty]

Nooo, I thought it was asking about kinetic energy :|

[Blakhitman]

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

[Blakhitman]

Anyone else have their multi-choice answers?

[m@tty]

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

[kyzoo]

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