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Two Objects Dropped Analysis

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Two objects are dropped from a bridge an interval of 1.00 s apart. What is their separation 1.00 s after the second object is released?
4.90 m
9.80 m
14.7 m
19.8 m

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Brief, clear calculations show how to pick the correct answer from choices given in this question about dropping two objects from a bridge.

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Solution:
from equation: s=(1/2)*g*t^2, we can get:
for the ...

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