Pleas Help :) Wind blows parallel to the ground into a $50$ gram rectangular piece of cardboard. As the end of the cardboard lifts higher, more of its area is exposed to the wind pressure, and the resulting force becomes more perpendicular to the area. The magnitude of the net torque on the cardboard is:

$=Nmsi{n}^2()$ Nmcos$()$

Answer $1$:

Answer $2$: