Air drag and acceleration (not gravity)

[Unstoppable13]

In physics class we made a rocket and test fired it. Now we are given the thrust and we found out the max height of the rocket and the time of flight.

Max Height = 76m
Time of thrust/ upward acceleration = .8s
Time of flight with only gravity acting until velocity is 0 . = 4.96s (not including downward fall)
Mass of rocket = 0.08 kg
Fg= 0.8N
g= 9.8m/s^2

Now we are supposed to find the air drag acting on the object. But I have no clue on how to do that because all the formulas relate to velocity, which is not really a given because the rocket is accelerating upwards. So is there a formula that I can use to solve this?

 

[jbsteele]

Yes, there is a formula that you can use to solve this. The formula for air drag is: Fd = 1/2 * ρ * v2 * Cd * A where ρ is the density of air, v is the velocity of the rocket, Cd is the drag coefficient, and A is the area of the rocket. To calculate the air drag, you will need to calculate the velocity of the rocket at different points in time. You can do this by using the equation: v = u + at where u is the initial velocity (which is 0 in this case), a is the acceleration due to thrust (Fg/m where m is the mass of the rocket) and t is the time. Once you have the velocity, you can then calculate the air drag using the formula above.

 

[kerimek]

To calculate the air drag on an object, you will need to use the formula Fd = 1/2 * ρ * v^2 * Cd * A, where Fd is the air drag force, ρ is the density of air, v is the velocity of the object, Cd is the drag coefficient, and A is the cross-sectional area of the object. In this case, since the rocket is accelerating upwards, you will need to use the average velocity during its flight, which can be calculated by dividing the distance traveled (76m) by the time of flight (4.96s). Once you have the average velocity, you can plug it into the formula along with the other given values to calculate the air drag force acting on the rocket. Keep in mind that the drag coefficient and cross-sectional area may vary depending on the shape and size of the rocket, so you may need to do some research or experimentation to find those values.