The velocity of a diver just before hitting the water is -10.7 m/s, where the minus sign indicates that her motion is directly downward. What is her displacement during the last 1.27 s of the dive?
a = -9.81 m/s^2
v = Vi + a t = Vi - 9.81 t
assume Vi = 0, falling
v = -9.81 t
so
-10.7 = -9.81 t
t = 1.09 second fall to water surface
so what was her speed 1.27 s before?
I have no idea. She was climbing the ladder