### 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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[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

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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.

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