1. The problem statement, all variables and given/known data A raindrop of mass 3.35x10-5 falls vertically at constant speed under the influence of gravity and air resistance. Model the drop as a particle. As it falls 100m, what is the work done on the raindrop. (a) by the gravitational force and (b) the air resistance. 2. Relevant equations FΔrCosθ=W Fg=mg 3. The attempt at a solution Fg=mg=3.34x10-4 Force of gravity is acting downward, and air resistance is acting upwards so the net force is taken into account when using FΔrCosθ, right? Lost after this step. Why is the force constant? Just wondering?