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Hmmmm... What i thought was that the ball was travelling towards the datalogger, hence why i thought it started when the ball left the table... The starting distance was 1.5 m, which was yes, as it left the table. I thought from the way the graph read that this was when it started and that as...

Physics is meant to be physics, and this test was specifically geared those who knew all the exact dot pointed related historys, whether they understood the physics or not. Now in my class there are 2 of us who click really well with PHYSICS. And there are 2 people who studied really hard on...

I wasn't talking about the graph drawn, i know what i drew. And ok, if the graph given was before it left the edge, then as i said above, irrelevant.

Yeh, sorry. I wasnt meaning to get into any sort of issues. It DOESNT swing like a pendulum as the question said... But yeh, exams over, i thought it was crap, but its gone, done.

Ummm, what i was saying was (and if youre right about it being on the ledge, it is irrelevant) That a displacement against time graph for a changing velocity (accelerated by gravity) is NOT A STRAIGHT LINE, which the graph given was.

Ummm, Take ur experiment. Now, does the stick swing lengthways? No. Not like a pendulum motion anyway. That was the direction that was relevant to the question. (Make sure both ends of the stick are tied to different points.)

Sorry, my bad:)

lol, head back to other post.

Ummm, actually, it started when the ball went off the ledge, by my reading, and i dont recall it saying that it was only reading horizontal displacement, though i will admit i could be wrong there. I dont remember it that precisely.

Things connected at 2 points CANNOT swing as a pendulum in the direction indicated in the question. Datalogger wasnt fine. I know it was a thought experiment, but it was a stupid one.

I dunno what you're on about Telepathic. 1.5 cm DOES = 0.015m

I attempted to work out the distances. They didnt work. + there is no way that a linear graph for distance to time can represent an increasing net velocity (static horizontal velocity (assumed in physics) + increasing vertical velocity due to gravity)

The thing that pissed me off about this question was that the graph from the data logger was actually impossible, in no position could the data logger have recorded thos figures. But i got the same graph as the rest of you, by assumption.

I can't believe that test. If i wanted to be tested on history i wouldve done history, not physics. The test had virtually no actual physics in it at all. Apart from that, several of the diagrams and graphs given for different questions were plain wrong (e.g. the coil and magnet q. where...

Yeh i only really wish i'd done more work. I failed hard, purely cos of not doing any hw or any work fullstop until about 3 weeks ago. I would have been better off to keep music, its funny when i think of it that way, in a sick kind of way. Dammit, cos i wouldve enjoyed music much more...

Thats not a bad idea... Depends on the thickness of the paper tho.

Right, yeh i meant if they did that in the exam.

I thought it might've been u... Wasnt certain. Figured you'd know it was me if it was. Im fucked, absolutely no hope. How bout u?

Wait up, 6 days to the HSC??? Crap!!!:)

There are in a lot of past papers questions which ask you to copy out the graph shown, especially in 3unit. They give no marks for this and often the questions can be worked out by looking at the graph already given. This seems like a waste of time to me, should i bother copying out those...