Physicsssssss multiple choice?
How far from the Earth's surface does an object fall if it fall in free fall for 1 second?
A) 0 m
B) 4.9 m
C) 9.8 m
D) 19.6 m
How far from the Earth's surface does an object fall if it fall in free fall for 1 second?
A) 0 m
B) 4.9 m
C) 9.8 m
D) 19.6 m
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Verified answer
9.8m
s = 4.9t^2 = 4.9 m
or initial v = 0
final v = 9.8
mean v = 4.9 m/s
s = 4.9
Answer B)