Skip to main content
Physics

Return to Question

Post Closed as "Duplicate" by Jim, user10851, JamalS, Qmechanic♦
added 7 characters in body; edited tags
Source Link
Qmechanic ♦
Qmechanic ♦
  • 213.1k
  • 48
  • 590
  • 2.3k

For my computing project, I am creating a projectile simulator but I cant seem to get my head round the air resistance. I tried by working out the horizontal and vertical velocity by solving it (vertically and horizontally giving me two equations):

  • dv/dt = -cv^2$dv/dt = -cv^2$ (horizontal)
  • dv/dt = -cv^2 - g$dv/dt = -cv^2 - g $ (vertical)

where c is 1/2  (drag co x density x cross sectional area).

But after doing the integrals and finding the equation it doesntdoesn't seem to be working as I want them to...

Sorry for the bad formatting.. (Ill try to excuse myself by saying Im new) and thanks for any help

For my computing project, I am creating a projectile simulator but I cant seem to get my head round the air resistance. I tried by working out the horizontal and vertical velocity by solving it (vertically and horizontally giving me two equations):

  • dv/dt = -cv^2 (horizontal)
  • dv/dt = -cv^2 - g (vertical)

where c is 1/2(drag co x density x cross sectional area).

But after doing the integrals and finding the equation it doesnt seem to be working as I want them to...

Sorry for the bad formatting.. (Ill try to excuse myself by saying Im new) and thanks for any help

For my computing project, I am creating a projectile simulator but I cant seem to get my head round the air resistance. I tried by working out the horizontal and vertical velocity by solving it (vertically and horizontally giving me two equations):

  • $dv/dt = -cv^2$ (horizontal)
  • $dv/dt = -cv^2 - g $ (vertical)

where c is 1/2  (drag co x density x cross sectional area).

But after doing the integrals and finding the equation it doesn't seem to be working as I want them to...

Sorry for the bad formatting.. (Ill try to excuse myself by saying Im new) and thanks for any help

Source Link
ObnoxiousFrog
ObnoxiousFrog
  • 63
  • 1
  • 4

Working out velocity (including air resistance)

For my computing project, I am creating a projectile simulator but I cant seem to get my head round the air resistance. I tried by working out the horizontal and vertical velocity by solving it (vertically and horizontally giving me two equations):

  • dv/dt = -cv^2 (horizontal)
  • dv/dt = -cv^2 - g (vertical)

where c is 1/2(drag co x density x cross sectional area).

But after doing the integrals and finding the equation it doesnt seem to be working as I want them to...

Sorry for the bad formatting.. (Ill try to excuse myself by saying Im new) and thanks for any help