Question

1. A flowerpot falls from a windowsill 25.0 m above the sidewalk.
a. how fast is the flowerpot moving when it strikes the ground?

dont i need to know the time it takes, what formula am i supposed to use for this? would 25 m be the displacement?

b. how much time does a passerby on the sidewalk below have to move out of the way before the flowerpot hits the ground?

please help!!

Answer 1

(a)
Vf^2 = Vo^2 + 2gy
since Vo = 0,
Vf^2 = 2gy
Substitute and solve for Vf
(b)
y =(1/2) gt^2
Substitute and solve for t

Answer 2

wewt