In fluid dynamics, drag (sometimes called air resistance, a type of friction, or fluid resistance, another type of friction or fluid friction) refers to forces acting ...
Is it because they all weigh the same? ... because they all have the same gravity?
... because the
We will assume the realistic situation that both feather and elephant encounter
Sep 10, 2010
An object that is falling through the atmosphere is subjected to two external forces. The first force is the gravitational force, expressed as the weight of the object, ...
The velocity dependence may be very complicated, and only special cases can
be treated analytically. At very low speeds for small particles,
For large objects moving through air, the