A balloon rises from the ground with a constant acceleration of 4 ft per e seconds later, a stone is thrown vertically up from the launching site. st be the minimum initial velocity of the stone for it to just touch the bal- -te that the balloon and stone have the same velocity at contact.

Structural Analysis
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ISBN:9781337630931
Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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A balloon rises from the ground with a constant acceleration of 4 ft per
sec'. Five seconds later, a stone is thrown vertically up from the launching site.
What must be the minimum initial velocity of the stone' for it to just touch the bal-
loon? Note that the balloon and stone have the same velocity at contact.
Transcribed Image Text:A balloon rises from the ground with a constant acceleration of 4 ft per sec'. Five seconds later, a stone is thrown vertically up from the launching site. What must be the minimum initial velocity of the stone' for it to just touch the bal- loon? Note that the balloon and stone have the same velocity at contact.
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