Pre-transposed formula's

[soopertaco]

So just to make it clear, you DO NOT need to show steps as to how the pre transposed formula was obtained?

yeah true but spesh integration is pretty rewarding as well haha

My teacher said you do, to not advantage the spesh kids who actually prove the parabolic equations

I'm scared now.

Nah, its actually pretty straightforward, especially compared to some of the integration stuff we do

[Millar.bj]

my teacher said we could just use the pretransposed formula's

[thatricksta]

for the max height formula, is it sin(theta^2)
or is it (sin(theta)) ^2?

also, when we are talking about symmetrical flight, does this mean that there is ONLY a horizontal velocity or ONLY a vertical velocity?
thanks

[pi]

for the max height formula, is it sin(theta^2)
or is it (sin(theta)) ^2?

also, when we are talking about symmetrical flight, does this mean that there is ONLY a horizontal velocity or ONLY a vertical velocity?
thanks

If its confusing, don't use them. I'm not, just to safe.

The 'u' is actually the total velocity (ie. the hypotenuse of the horizontal and vertical components).

[tony3272]

for the max height formula, is it sin(theta^2)
or is it (sin(theta)) ^2?

also, when we are talking about symmetrical flight, does this mean that there is ONLY a horizontal velocity or ONLY a vertical velocity?
thanks

If its confusing, don't use them. I'm not, just to safe.

The 'u' is actually the total velocity (ie. the hypotenuse of the horizontal and vertical components).

Rohitpi's right. It's best not to use them if you aren't completely sure how to use them. On the VCAA examiners reports they have mentioned multiple times that students have lost marks by applying the wrong derived formulas from their cheat sheets.

But if you are going to use it, it's (sin(theta))^2. Also by symmetrical situation, it's basically referring to the situation in which the projectile starts at one height and finishes at the same height only in the case where air resitance is ignored.