Question

Kilauea in Hawaii is the world’s most continuously active volcano. When we say very active volcanoes, they characteristically eject red-hot rocks and lava rather than smoke and ash. Suppose a large rock is ejected from the volcano with a speed of 25 m/s and at an angle 35.0⁰ above the horizontal. The rock strikes the side of the volcano at an altitude of 20.0 m lower than its starting point. (a) Calculate the time it takes to follow its path. (b) What are the magnitude and the direction of the rock’s velocity at impact?

Answer 1

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