posted by tank .
A professor drops one lead sinker every 2.0 s from a very high window.
1) How far has the first sinker gone when the second one is dropped?
2) Does the distance between the first and second sinker remain constant? (yes or no)
1. d = Vo*t + 0.5at^2,
d = 0 + 0.5*9.8*2^2 = 19.6m.