As per initial given conditions first we will find the initial potential energy of the feather
[tex]U = mgh[/tex]
[tex]m = 0.001 kg[/tex]
[tex]g = 9.8 m/s^2[/tex]
[tex]h = 2m[/tex]
[tex]U = (0.001kg)(9.8 m/s^2)(2m)[/tex]
[tex]U = 0.0196 J[/tex]
now we know that few amount of its initial energy is lost in form of frictional energy loss
so remaining energy will be less than the initial potential energy
So final answer would be
A. KE < 0.0196 J
