169_Problem CHAPTER 9

# 169_Problem CHAPTER 9 - PROBLEM 9.133 The steel machine...

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PROBLEM 9.133 The steel machine component shown is formed by machining a hemisphere into the base of a truncated cone. Knowing that the density of steel is 7850 kg/m 3 , determine the mass moment of inertia of the component with respect to the y axis. SOLUTION First note 240 or 720 mm 120 80 L L L = = and st m V ρ = Now ( ) ( ) 2 2 3 1 1 1 1 7850 kg/m 0.120 m 0.720 m 3 3 st m a h π ρ π
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