when a ball let free fall from the top of building. what is the acceleration and what it sing?
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a ball if it is let free fall from the top of the building it is under free fall with only the influence of the gravitational force...
universal law of gravitation
F=GMm
d^2
then the result is =
9.8 m/s
it's sign is metre per second. (m/s)
. i hope this helps
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