The rigid object shown is rotated about an axis perpendicular to the paper and through point P. The total kinetic energy of the object as it rotates is equal to 2.7 J. If M = 2.5 kg and L = 0.3 m, what is the angular velocity (in rad/s) of the object? Neglect the mass of the connecting rods and treat the masses as point masses.

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Chapter1: Units, Trigonometry. And Vectors
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The rigid object shown is rotated about an axis perpendicular to the paper and through point P. The total kinetic energy of the object as it rotates is equal to 2.7 J. If M = 2.5 kg and L = 0.3 m, what is the angular velocity (in rad/s) of the object? Neglect the mass of the connecting rods and treat the masses as point masses.

The diagram shows a symmetric arrangement of four masses around a central point, labeled "P". Here's a detailed description:

1. **Mass Arrangement**:
   - There are four spherical masses arranged in a cross shape. 
   - Two larger masses labeled "2M" are positioned vertically, one above and one below the central point P.
   - Two smaller masses labeled "M" are on the horizontal axis, one on the left and one on the right of point P.

2. **Distances**:
   - The horizontal distance between the center point P and each of the smaller masses (M) is denoted by "L".
   - The vertical distance from the central point P to each of the larger masses (2M) is "L/2".

The setup is often used to analyze gravitational forces and moments of inertia in physics. The symmetry and differing mass values introduce interesting concepts in the balance and center of mass calculations.
Transcribed Image Text:The diagram shows a symmetric arrangement of four masses around a central point, labeled "P". Here's a detailed description: 1. **Mass Arrangement**: - There are four spherical masses arranged in a cross shape. - Two larger masses labeled "2M" are positioned vertically, one above and one below the central point P. - Two smaller masses labeled "M" are on the horizontal axis, one on the left and one on the right of point P. 2. **Distances**: - The horizontal distance between the center point P and each of the smaller masses (M) is denoted by "L". - The vertical distance from the central point P to each of the larger masses (2M) is "L/2". The setup is often used to analyze gravitational forces and moments of inertia in physics. The symmetry and differing mass values introduce interesting concepts in the balance and center of mass calculations.
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