The Rigid Body Shown Rotates About an Axis Through Its

question 72

Multiple Choice

The rigid body shown rotates about an axis through its center of mass and perpendicular to the paper. If M = 2.0 kg and L = 80 cm, what is the kinetic energy of this object when its angular speed about this axis is equal to 5.0 rad/s? Neglect the mass of the connecting rod and treat the masses as particles.

• A) 18 J
• B) 15 J
• C) 12 J
• D) 23 J
• E) 26 J

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