# Projectiles- collision (1 Viewer)

#### aanthnnyyy

##### Active Member
can someone also help clarify what the actual Equation of the trajectory of motion is?

#### Drsoccerball

##### Well-Known Member
can someone also help clarify what the actual Equation of the trajectory of motion is?
$\bg_white x=vtcos\theta , y=vtsin\theta -\frac{gt^2}{2}$

$\bg_white t= \frac{x}{vcos\theta}$

$\bg_white y= xtan\theta -\frac{gx^2}{2v^2cos^2\theta}$

Usually they ask you to prove it

#### aanthnnyyy

##### Active Member
$\bg_white x=vtcos\theta , y=vtsin\theta -\frac{gt^2}{2}$

$\bg_white t= \frac{x}{vcos\theta}$

$\bg_white y= xtan\theta -\frac{gx^2}{2v^2cos^2\theta}$

Usually they ask you to prove it
oh right so basically the Cartesian thanks. I just didn't realize that was the actual equation of the 'trajectory' makes sense thanks heaps

#### Drsoccerball

##### Well-Known Member
oh right so basically the Cartesian thanks. I just didn't realize that was the actual equation of the 'trajectory' makes sense thanks heaps
anytime!