Explorers in the jungle find an ancient monument in the shape of a large isosceles triangle...

 

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Explorers in the jungle find an ancient monument in the shape of a large isosceles triangle as shown. The monument is made from tens of thousands of small stone blocks of density = 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. a. Choosing a coordinate system with x 0 at the center of the pyramid, y = 0 at the base of the pyramid, and z = 0 at the face of the pyramid shown in the diagram, determine the coordinates of the center of mass of the pyramid in the x, y, and z directions. 15.7 m 64.8 m 3.60 m b. How much work did laborers do on the blocks to put them in position while building the entire monument? Hint: Think about the gravitational potential energy of an object whose center of mass if some height above the ground. Explorers in the jungle find an ancient monument in the shape of a large isosceles triangle as shown. The monument is made from tens of thousands of small stone blocks of density = 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. a. Choosing a coordinate system with x 0 at the center of the pyramid, y = 0 at the base of the pyramid, and z = 0 at the face of the pyramid shown in the diagram, determine the coordinates of the center of mass of the pyramid in the x, y, and z directions. 15.7 m 64.8 m 3.60 m b. How much work did laborers do on the blocks to put them in position while building the entire monument? Hint: Think about the gravitational potential energy of an object whose center of mass if some height above the ground.

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Answer Total volume of pyramid area of trangular face x thickne... View the full answer