In mathematics, variety is a generalization of the surface idea. There are several types of varieties, according to the properties they possess. The most usual are the topological varieties and the differentiable varieties. but I still do not know what it is!
A body falling under the action of the drag force of the air -βvn
n ∈ ℤ
β= coefficient of air resistance
The Attempt at a Solution
I can not resolve to any integer (n)