MAV doesn't like to make much sense

[AppleXY]

TSFX's exam are over the top at times as well. But I think MAV is probably the best because the writers may be VCAA examiners

[bigtick]

Nothing wrong with Q2 answer, assuming both are at rest initially. When both are moving, acceleration changes. For fixed angle, acc is a function of time.

[Mao]

Ahh, bigtick, I was anticipating your replies

Self-solve: 1st question

for x<0 and -1<y<1, z+i lies in the second quadrant, and z-i lies in the third quadrant.

hence, arg(z+i) is positive, and arg(z-i) is negative, and , let the conjugate of z-i be w, also lies in the second quadrant.



now, the sum of two angles in the second quadrant is bounded within and , and hence will not equal to , the relationship cannot exist for x<0 and -1<y<1

argument of z is not unique, any two arguments of z differ by an integer multiple of 2pi.

that is quite true, and I have considered that. But these don't really matter as I took the tangent on both sides in my calculations.

[bigtick]

They do matter. E.g. arg(z) = 19pi/12, arg(w) = -2pi/3, arg(z) - arg(w) = 27pi/12.
But arg(w) also = 2pi - 2pi/3 = 4pi/3. Now arg(z) - arg(w) = pi/4.

[Mao]

[dcc]

Do you have those questions written in a coherent fashion?  I cannot begin to understand what the question is asking the way its written up at the moment

[Mao]

in bold are the questions

the last question, pulling force refers to the force up the slope inclined at 30 degrees.

[dcc]

Did you draw those pictures?

[Mao]

yeah.,..

[/0]

In the last question what is g? ?

[shinny]

Yeh, that's the VCAA standard for g

[Collin Li]

Yeh, that's the VCAA standard for g

VCAA Specialist Mathematics standard.

The VCAA Physics standard is . I've always wondered why the Physics subject uses the less accurate of the two...

[shinny]

Well I don't do physics so yeh, I wouldn't know =P I assume they do because it makes it easier for calculations and such, and physics is more testing the concepts rather than the arithmetic side of things...although 9.8 doesn't really complicate it that much anyhow

[gta007]

Anyone have the solutions to the Neap Exam 2 exam?

[Mao]

Anyone have the solutions to the Neap Exam 2 exam?

which year?