Determine the weight of the cube

Reference no: EM131391329

One of the sculptures displayed on a university campus consists of a hollow cube made of six aluminum sheets, each 5 × 5 ft, welded together and reinforced with internal braces of negligible weight. The cube is mounted on a fixed base at A and can rotate freely about its vertical diagonal AB. As she passes by this display on the way to a class in mechanics, an engineering student grabs corner C of the cube and pushes it for 1.2 s in a direction perpendicular to the plane ABC with an average force of 12.5 lb. Having observed that it takes = s for the cube to complete one full revolution, she flips out her calculator and proceeds to determine the weight of the cube. What is the result of her calculation?

Reference no: EM131391329

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