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Problem
Problem
A stone is released from a rising balloon accelerating upward with acceleration
a
a
a
. The acceleration of the stone just after the release is a.
a
a
a
upward b.
g
g
g
downward c.
(
g
−
a
)
(g - a)
(
g
−
a
)
downward d.
(
g
+
a
)
(g + a)
(
g
+
a
)
downward
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