Speed (in m/s) when it is at a height of 1.23 meters above the floor will be 2.73 m/s
What is Potential energy ?
The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors is called Potential energy
Potential energy when h1= 1.61m will be : mgh1 = mg(1.61)
Potential energy when h2= 1.23m will be : mgh2 = mg(1.23)
the change in potential energy will be converted to kinetic energy :
mgh1 - mgh2 = 1/2 m [tex]v^{2}[/tex]
mg(h1-h2) = 1/2 m [tex]v^{2}[/tex]
g(h1 - h2 ) = 1/2 [tex]v^{2}[/tex]
9.8 (1.61 - 1.23 ) = 1/2 [tex]v^{2}[/tex]
[tex]v^{2}[/tex] = 7.448
v= 2.73 m/s
Speed (in m/s) when it is at a height of 1.23 meters above the floor will be 2.73 m/s
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