A stone is dropped from the roof of a tall building. A person measures the speed of the stone to be 49 m/sec when it hits the ground. The height of the building is closest to:
Select one:
a. 24 meters.
b. 49 meters.
c. 122 meters.
d. 245 meters.

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\[mgh = \frac{ 1 }{ 2 }mv ^{2}\]

you can subtract the mass from both sides which shows that everything falls at the same rate

you know what g is

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