Is my Projectile Motion Program Correct?

[hallowon]

Homework Statement

I'm trying to program a projectile motion program for my physics project. We are suppose to take account effects on air resistnace
If our drag coefficient is 0.4 our mass is 0.14273kg(baseball) initial velocity is 20, and angle is 45. What would be the acceleration of x component and y component

Homework Equations

The Attempt at a Solution

When i did ax=Fairx/mass i have a number in the 500's my ay= (fg+fairy)/m is really huge too:/

WHne i say huge i mean hundreds huge. All I'm asking is is -550m/s^2 a normal acceleration due to air resistance >.>

 

[ideasrule]

It definitely isn't normal. How did you calculate Fair? It should be Cd*rho*A*v^2.

 

[hallowon]

for just Fair it is kv^2

where k is initial velocity.(20) and k is 0.4(our given drag)

 

[Redbelly98]

Can you look up how drag coefficient is defined, either in your textbook or lecture notes? I think you are not using it correctly here.