The velocity when the object falls from 84 feet is 73.32 ft/sec
Step-by-step explanation:
The formula is derived from the conversion of energy principle. As the object falls the potential energy changes into kinetic energy. The right formula is:
[tex]v=\sqrt{64h}[/tex]
here,
v represents the velocity
and
h represents the height in feet.
We can plug in the value of height in the formula to get the value of velocity
So, Putting h=84
[tex]v=\sqrt{64*84}\\=\sqrt{5376}\\=73.3212\ ft/sec[/tex]
Rounding off to nearest 100th
v=73.32 ft/sec
The velocity when the object falls from 84 feet is 73.32 ft/sec
Keywords: Velocity, Height
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