Kilauea volcano in Hawaii is the world's most active volcano. It has a height of 1200 m. While erupting, it shoots out a boulder directly upward at 45 m/s. Part A What is the velocity of the boulder when it reaches the height of the volcano on the way down?

College Physics
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Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Kilauea volcano in Hawaii is the world's most active volcano. It has a height of 1200 m. While erupting, it shoots out a boulder directly upward at 45 m/s
Part A
What is the velocity of the boulder when it reaches the height of the volcano on the way down?
-45.0
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v Correct
This is true for any object in free fall. In the absense of air resistance, an object will always have the same speed when it reaches the same location. The
willbe different though. Hence the same magnitude, but opposite sign.
Part B
How much time does it take the boulder to reach the ground?
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Transcribed Image Text:R m 3 Kilauea volcano in Hawaii is the world's most active volcano. It has a height of 1200 m. While erupting, it shoots out a boulder directly upward at 45 m/s Part A What is the velocity of the boulder when it reaches the height of the volcano on the way down? -45.0 Submit Previous Answers v Correct This is true for any object in free fall. In the absense of air resistance, an object will always have the same speed when it reaches the same location. The willbe different though. Hence the same magnitude, but opposite sign. Part B How much time does it take the boulder to reach the ground? µẢ 24 Submit Previous Answers Request Answer MacBook Air 000 O00 DD F7 F2 F4 F5 F8 %24 3. 7. 4. 8. 5. K G. H. B.
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