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anonymous
 4 years ago
PLEASE HELP! MEDALS! If a volcano spews a 500 kg rock vertically upward a distance of 500 m, what was its velocity when it left the volcano?
anonymous
 4 years ago
PLEASE HELP! MEDALS! If a volcano spews a 500 kg rock vertically upward a distance of 500 m, what was its velocity when it left the volcano?

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TuringTest
 4 years ago
Best ResponseYou've already chosen the best response.1Important kinematic:\[v_f^2=v_i^2+2ad\]here acceleration is gravity (g) and down (so negative), at the top, vf is zero, and let's call distance h instead just to make it clear we are talking about height\[0=v_i^22gh\]solve for vi
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