culd some1 help me with these forumals (1 Viewer)

[ronaldinho]

what does each pronumeral mean - like Vy ?
and what type of questions do i use them in.. like which one do i use calculating horizontal range...

thanks

Vy =Uy + ayt

Vx^2 = Ux^2

Vy^2 = Uy^2 + 2aydeltay

delta x = Uxt

delta y = Uyt + 1/2ayt^2

 

[Larryman]

ok these are equations for projectile motion, learn them, know them, they are your only friend when youre throwing shit accurately at your examiners. heres a basic explanation

Uy is the initial vertical component of a velocity
Vy is the 'final' vertical component of a velocity
ay is the vertical acceleration, if opposing the velocity it is negative
t is the time at that point in flight
Ux is the initial horizontal component of a velocity
Vx is the 'final' horizontal component of a velocity
(note: Vx=Ux)
'delta'y is the height (note:sometimes denoted as 's' for displacement)
'delta'x is the range

understand the formulas as they are not exclusively used for one purpose, and ask a teacher for some exercises where you can apply them, im not sure on your level mathematics, so you may need to approach them slowly.

 

[The Gate Keeper]

x and y are the x and y axis or otherwise known as horizontal and vertical component.

Think of it as a grid, x and y co-ordinates, x is horizontal, meaning left to right (vice versa), and y is up and down.

Understandable?