Answer:v=2 m/s
Explanation:
Given
Length of string L=1.2 m
mass of pendulum m=0.25 kg
maximum inclination with vertical \theta =34
vertical Rise of Pendulum from its mean position is given by
[tex]\Delta h=L(1-\cos \theta )[/tex]
Conserving Energy at top and bottom point
Potential Energy of sphere is converted into kinetic energy of sphere
[tex]mgL(1-\cos \theta )=\frac{mv^2}{2}[/tex]
[tex]v=\sqrt{2gL(1-\cos \theta )}[/tex]
[tex]v=\sqrt{2\times 9.8\times 1.2(1-\cos 34)}[/tex]
[tex]v=\sqrt{4.021}[/tex]
[tex]v=2 m/s[/tex]
