An object, initially at rest, is dropped off a building and accelerates to Earth at -9.91 metres per second squared (downward). How long will it take for an object to reach a final velocity of -49.1 metres per second (downward)?
S = ?
U = 0
V = -49.1
A = -9.91
T = ?
V=U+AT
-49.1=-9.91t
-49.1/-9.91 = t
i think
i think
