10 25. Explorers in the jungle find an ancient monument in the * (cm) 10 20 30 shape of a large isosceles trian- gle as shown in Figure P9.25. The monument is made from tens of thousands of small stone blocks of density 3 800 kg/m". The monument is 15.7 m high and 64.8 m wide at its base and is everywhere 3.60 m thick from front to back. Before the monument was built many years ago, all the stone blocks lay on the ground. How much work did laborers do on the blocks to put them in position while building the entire mon- ument? Note: The gravitational potential energy of an object- Earth system is given by U - Mgy. where M is the total mass of the object and yey is the clevation of its center of mass above the chosen reference level. Figure P9.24 15.7 m 64.8 m 5.60 m

10 25. Explorers in the jungle find an ancient monument in the * (cm) 10 20 30 shape of a large isosceles trian- gle as shown in Figure P9.25. The monument is made from tens of thousands of small stone blocks of density 3 800 kg/m". The monument is 15.7 m high and 64.8 m wide at its base and is everywhere 3.60 m thick from front to back. Before the monument was built many years ago, all the stone blocks lay on the ground. How much work did laborers do on the blocks to put them in position while building the entire mon- ument? Note: The gravitational potential energy of an object- Earth system is given by U - Mgy. where M is the total mass of the object and yey is the clevation of its center of mass above the chosen reference level. Figure P9.24 15.7 m 64.8 m 5.60 m

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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