Question

A cubic meter of copper weighing 9000kg is rolled into a square bar 9 metres long. An exact cube is cut off from the bar. How much does it weigh?

Answer 1

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Answer 2

Answer:

when an exact cube of copper is cur off from the bar it weighs 333.3 kg

Step-by-step explanation:

Given in the question that,

volume of 1 m³ have mass = 9000 kg

Suppose side of square = x

Equation

x² * 9 = 1

x² = 1/9

x = √1/9

x = 1/3 m

volume of cube = x³ = 1/3³ = 1/27 m³

So the required weight = 9000 * 1/27 = 333.3 kg