1. The problem statement, all variables and given/known data An elevator is moving upward at a constant speed of 2.50 m/s. A bolt in the elevator ceiling 3.00m above the elevator floor works loose and falls. A. How long will it take the bolt to fall to the elevator floor? I am not sure if I should do this relative to elevator or earth. 2. Relevant equations Vb/g=Vb/e+Ve/g Yb/g=Yb/e+Ye/g 3.The attempt at a solution Vb/g=Vb/e+Ve/g Vb/g= velocity of bolt relative to ground Vb/e= velocity of bolt relative to earth Ve/g= velocity of elevator relative to ground Yb/g=Yb/e+Ye/g Yb/g=position of bolt relative to ground Yb/e= position of bolt relative to earth Ye/g=position of elevator relative to ground Vb/g=Vb/e+Ve/g Vb/g=0+2.5m/s Yb/g=Yb/e+Ye/g Yb/g=3m+ 2.5m/s*t Is this right so far? Where do I go from here? Thanks!