The trajectory of a rock ejected from the Kilauea volcano, with a velocity of magnitude 9.90 m/s and at angle 9.40 degrees above the horizontal. The rock strikes the side of the volcano at an altitude of 6.20m lower than its starting point. Calculate the magnitude of the rock’s velocity at impact? Use g = 9.8 m/s2.

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Chapter6: Motion In Two Dimensions
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The trajectory of a rock ejected from the Kilauea volcano, with a velocity of magnitude 9.90 m/s and at angle 9.40 degrees above the horizontal. The rock strikes the side of the volcano at an altitude of 6.20m lower than its starting point. Calculate the magnitude of the rock’s velocity at impact? Use g = 9.8 m/s2.

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