The Rigid Body Shown Is Rotated About an Axis Perpendicular

question 39

Multiple Choice

The rigid body shown is rotated about an axis perpendicular to the paper and through the point P. If M = 0.40 kg, a = 30 cm, and b = 50 cm, how much work is required to take the body from rest to an angular speed of 5.0 rad/s? Neglect the mass of the connecting rods and treat the masses as particles.

• A)2.9 J
• B)2.6 J
• C)3.1 J
• D)3.4 J
• E)1.6 J

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