- #1
antigona
- 2
- 0
Hi,
My problem is very simple... but yet it rises some doubt. I am calculating how long a projectile goes taking into account air drag. For the displacement I have the following formula:
x=(v0+Vterminal)/k*(1-e^(-kt)-Vterminal*t+x0
where k is the air drag coefficient
I know that this formula already includes both components of the velocity, thus it should give the correct displacement.
The equation states that my initial velocity is: 31.1m/s
The X component of the velocity is: 15.55m/s.
Which value of the velocity should i insert on the equation?
I have done the calculations with both and the results differed by very little, hence my confusion.
Appreciate the help, thanks.
R.
My problem is very simple... but yet it rises some doubt. I am calculating how long a projectile goes taking into account air drag. For the displacement I have the following formula:
x=(v0+Vterminal)/k*(1-e^(-kt)-Vterminal*t+x0
where k is the air drag coefficient
I know that this formula already includes both components of the velocity, thus it should give the correct displacement.
The equation states that my initial velocity is: 31.1m/s
The X component of the velocity is: 15.55m/s.
Which value of the velocity should i insert on the equation?
I have done the calculations with both and the results differed by very little, hence my confusion.
Appreciate the help, thanks.
R.