The ball below left has been falling for 5 seconds.
a What is its acceleration?
b What is its speed?
c What is its average speed?
d What height has it fallen?
10 m
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Explanation:
An object in free fall experiences constant acceleration if air resistance is negligible. On Earth, all free-falling objects have an acceleration g due to gravity, which averages g=9.81m/s2 g = 9.81 m/s 2 .
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