Question

What is the landing velocity of an object that is thrown vertically down with a velocity of 5m/s from a height of 25m?

Answer 1

\[v^2=v_0^2+2gy \\v_0=5;y=25 \]

Answer 2

22.69 m/s :D

Answer 3

initial velocity= Vi= 5m/s
height=h=25m
final velocity=Vf=?
using third equation of motion
2gh= Vf^2 -Vi^2
2(9.8)(25)= Vf^2 - 25
490= Vf^2 - 25
Vf^2= 515
Vf= sqrt (515)
Vf= 22.69 m/sec