# The most tragic mistake ever... or something very clever ? (1 Viewer)

#### hyparzero

##### BOS Male Prostitute
Look at the projectile motion question:

Clearly, the answer is ZERO - its asking for the velocity when it LANDS. If it lands, it's not moving anymore...

Who disagrees?

#### suchet_i

##### derka derka
i think u made the biddest mistake

#### vulgarfraction

##### Member
If you wrote that in a test, that's just a tragic mistake. Sorry.

Technically it's still moving when it lands. AFTER it lands it stops moving.

Even if you disagree that's what you have to assume. So 45ms^-1 to the right.

#### P_Dilemma

##### Extraordinary Entertainer
YES! I got it right! Go 45m/s!

#### shinji

##### Is in A State Of Trance
state the horizontal component of the projectile when the object lands.

asking u for the horizontal component : doesn't change.

#### bboyelement

##### Member
hyparzero said:
Look at the projectile motion question:

Clearly, the answer is ZERO - its asking for the velocity when it LANDS. If it lands, it's not moving anymore...

Who disagrees?
sorry its wrong ... if you do 3 unit or 4 unit projectile you would know when it lands the horizontal is not zero or either the vertical if you are moving upwards and landing

#### Benmc

##### Member
vulgarfraction said:
If you wrote that in a test, that's just a tragic mistake. Sorry.

Technically it's still moving when it lands. AFTER it lands it stops moving.

Even if you disagree that's what you have to assume. So 45ms^-1 to the right.
Oh shit... Its a VECTOR....I forgot to pur to the right.....DAMN

#### Benmc

##### Member
hyparzero said:
Look at the projectile motion question:

Clearly, the answer is ZERO - its asking for the velocity when it LANDS. If it lands, it's not moving anymore...

Who disagrees?
FInal velocity is never zero. When it impacts it still has a velocity. In this case since there is no horizontal acceleration, the horizontal velocity will be 45m/s.

#### hyparzero

##### BOS Male Prostitute
Well, fark that.

I hope everyone here is wrong. Why couldn't the BOS used "final horizontal velocity" instead..farken bastards

#### eX-Bhai

##### Member
Hm, I see you have forgotten Galileo's analysis of projectile motion. The vertical component is INDEPENDENT of the horizontal component. So, in essence the horizontal velocity is kept constant (where it undergoes no acceleration), but the vertical acceleration changes (depending on its position on earth). So yeh, good try though, it sounds like something I'd do. But sadly, its wrong. Don't get too worried about it though - its only one mere mark.

#### jed.hamers

##### Member
It is 45ms-1 but the question should be phrased as -----> "State the horizontal component of the projectiles velocity just before it lands." But you shouldn't try to think of it your way because that's not a practical question. This question was a gimmy.

-45

D:

#### wuddie

##### Black by Demand
BOO YEA 45ms all the way... i think i forgot to put 'to the right', does it matter?

#### Benmc

##### Member
wuddie said:
BOO YEA 45ms all the way... i think i forgot to put 'to the right', does it matter?
I forgot to.
Well velocity is a vector so it probably does matter.
But hopefully the see that we understood the question enough and just give us the damn mark.

##### Glavenopolis
Fuck, I screwed that up royally, Friggin Hell. :mad1: I wasn't thinking properly was I.....

#### angmor

##### momentica-one.deviantart.
anyway, they wont make it so tricky and shit. its cleary 45, due to the fact they said horizontal component anyway.

#### SL33pY

##### ceo of the banana factory
hyparzero said:
Look at the projectile motion question:

Clearly, the answer is ZERO - its asking for the velocity when it LANDS. If it lands, it's not moving anymore...

Who disagrees?
LOL!!! biggest mistake of your life was to say zero!... well maybe not biggest,, being a bos prostitute is also quite questionable...

#### angmor

##### momentica-one.deviantart.
SL33pY said:
LOL!!! biggest mistake of your life was to say zero!... well maybe not biggest,, being a bos prostitute is also quite questionable...

CHIGGA

SL33pY said: