Any help appreciated!

Question

Pull out a blank piece of paper from your exam book. Hold it from one of its ends and
blow air horizontally over the top of the paper as shown in the figure below. If you blow
hard enough you will see the paper rise to become almost horizontal.
(a) Explain why this occurs.
(b) Estimate the air speed above the paper required to hold it horizontal if the paper
weighs m=4.
10-3 kg and has an area of A=0.04 m^2.
(The density of air is approximately ρ=1.2 kg/m3)