release from X to Y:
by
u=0, a=-9.81, s=-9,
so t=1.35 and v = u + at = -13.288
Similariy, from Y to Z will have t = 0.903,
So the ratio between two time is 3:2
release from X to Y:
by
u=0, a=-9.81, s=-9,
so t=1.35 and v = u + at = -13.288
Similariy, from Y to Z will have t = 0.903,
So the ratio between two time is 3:2