What? This looks just like the forces for the balloon? Ok, it does search similar—but there is a big big difference. For the balloon, there is that upward-pushing buoyancy pressure, and it is really just 1 benefit. It does not modify when the wind velocity increases. For the kite, the upward pushing pressure is the carry, and it DOES count on the wind velocity. So it is really not the exact. Just take into consideration the circumstance when there is zero wind. The drag pressure will be zero, which indicates the carry is zero. The kite won’t fly—it just falls down and it is really unfortunate.
Yet again, I get two pressure equations that I can use to eradicate the mysterious benefit of T. With that, I get the subsequent expression for the angle of the kite (θk). Truly, I set a subscript k on a bunch of stuff so you could see it is really distinctive than the values for the balloon. Oh, air continue to has the exact density for each objects.
Ok, I am about to make a plot of the traveling angle for each the balloon and a kite at distinctive wind speeds. But ahead of I do that, let us assume about the bare minimum velocity to fly this kite. In order to carry off the floor, the carry pressure ought to be at the very least equal to the excess weight of the kite. I can then address this for the wind velocity. Everything decrease than this and you won’t have a traveling kite.