AP Physics 1easymcq1 pt
A ball is dropped from rest from a height of 45 m (g = 10 m/s²). How long does it take to reach the ground?
A.3.0 s
B.4.5 s
C.9.0 s
D.2.1 s
Explanation
Core Concept
t = √(2h/g) = √(90/10) = 3.0 s.
Correct Answer
A3.0 s
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