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[3.] Three rocks, each of mass 12.0 kg, are thrown off a cliff with the same speed, 5.00 m/s. One is thrown straight up. One is thrown directly horizontally. One is thrown straight down. Which rock has the greatest speed just before they stroke the ground, 18 m below? Explain your answer fully. 18 m

[3.] Three rocks, each of mass 12.0 kg, are thrown off a cliff with the same speed, 5.00 m/s. One is thrown straight up. One is thrown directly horizontally. One is thrown straight down. Which rock has the greatest speed just before they stroke the ground, 18 m below? Explain your answer fully. 18 m

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
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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### Problem 3: Three rocks, each of mass 12.0 kg, are thrown off a cliff with the same speed, 5.00 m/s. One is thrown straight up. One is thrown directly horizontally. One is thrown straight down. Which rock has the greatest speed just before they strike the ground, 18 m below? Explain your answer fully. ### Explanation: The accompanying diagram shows three different scenarios for the three rocks being thrown off the cliff: - The first rock is thrown straight up. - The second rock is thrown directly horizontally. - The third rock is thrown straight down. The height of the cliff is 18 meters. ### Diagram Description: The diagram illustrates a vertical drop of 18 meters from the edge of a cliff. Three vectors show the initial velocities of the three rocks: - One vector points straight up. - Another vector points directly horizontal. - The last vector points straight down from the top of the cliff.
Transcribed Image Text:### Problem 3: Three rocks, each of mass 12.0 kg, are thrown off a cliff with the same speed, 5.00 m/s. One is thrown straight up. One is thrown directly horizontally. One is thrown straight down. Which rock has the greatest speed just before they strike the ground, 18 m below? Explain your answer fully. ### Explanation: The accompanying diagram shows three different scenarios for the three rocks being thrown off the cliff: - The first rock is thrown straight up. - The second rock is thrown directly horizontally. - The third rock is thrown straight down. The height of the cliff is 18 meters. ### Diagram Description: The diagram illustrates a vertical drop of 18 meters from the edge of a cliff. Three vectors show the initial velocities of the three rocks: - One vector points straight up. - Another vector points directly horizontal. - The last vector points straight down from the top of the cliff.
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