How Do These Equations Model Projectile Motion?

[Carl_M]

Y(t) = VoyT - (gt² / 2 )

H = (1/2g) Vo² Sin²a

( 1/2g ) Vo²Sin2a = 0

X = 2(Vo²Sin a cos a) / g

Vy(t) = Voy - gt

0 = Voy - gt

t = Voy / g

t = VoSin a / g

 

[LowlyPion]

Y(t) = VoyT - (gt² / 2 )

H = 0.50g Vo² Sin²a

0.50g Vo²Sin2a = 0

X = (Vo²Sin a cos a) / g

Vy(t) = Voy - gt

0 = Voy - gt

t = Voy / g

t = VoSin a / g

These are kinematic equations.

https://www.physicsforums.com/showpost.php?p=905663&postcount=2

 

[lubuntu]

whatever you want them to i suppose

 

[Carl_M]

X = 2(Vo²Sin a cos a) / g Is this for the entire graph for displacement in X?

H = (1/2g) Vo² Sin²a Is this for the height of the maximum height for the graph?

( 1/2g ) Vo²Sin2a = 0 Does this find the maximum height for the graph?

t = VoSin a / g Is this for Time at V = 0? or max height?

t = 2VoSin a / g Is this the time for when the object hits the ground?