Question: A large boulder is ejected vertically upward from a volcano with an initial speed of 3 9 . 4 m s . Air resistance may

A large boulder is ejected vertically upward from a volcano with an initial speed of 39.4ms. Air resistance may be ignored.
Part C
When is the displacerfent of the boulder from its initial position zero?
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A large boulder is ejected vertically upward from

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