Answer:4.93 m/s
Explanation:
Given
height to reach is (h )1.24 m
here Let initial velocity is u
using equation of motion
[tex]v^2-u^2=2ah[/tex]
here Final Velocity v=0
a=acceleration due to gravity
[tex]0-u^2=2\left ( -g\right )h[/tex]
[tex]u=\sqrt{2gh}[/tex]
[tex]u=\sqrt{2\times 9.81\times 1.24}[/tex]
[tex]u=\sqrt{24.328}[/tex]
u=4.93 m/s