Illustrate when is velocity of the boulder zero? illustrate, Ask an Expert

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A large boulder is ejected vertically upward from a volcano with an initial speed of 40.4 m/s. Air resistance may be ignored.

When is the displacement of the boulder from its initial position zero?

When is the velocity of the boulder zero?

Illustrate what is the magnitude of the acceleration while the boulder is moving?

What is the direction of the acceleration while the boulder is moving?

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