Physics
Projectile motion
Flight with air drag: the parabola is only the beginning.
What happens
The textbook parabola meets the air: drag bends the trajectory, shaves the range and drops the best launch angle below 45 degrees. The fan mode launches a spread of angles at once, so the whole family of paths hangs in the sky; compare the measured range with the vacuum prediction in the info line.
Equations used in the module
Equations c = 0, y₀ = 0: x = v₀ cos α t; y = v₀ sin α t − ½gt² R = v₀² sin(2α)/g m dv/dt = mg − c |v−w|(v−w)
