The Rigid Object Shown Is Rotated About an Axis Perpendicular

question 17

Multiple Choice

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 1.4 J. If M = 1.3 kg and L = 0.50 m, what is the angular velocity of the object? Neglect the mass of the connecting rods and treat the masses as particles.

• A) 1.3 rad/s
• B) 1.5 rad/s
• C) 1.7 rad/s
• D) 1.2 rad/s
• E) 2.1 rad/s

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Definitions:

Standard Deviation

A statistics metric that quantifies the variation or dispersion of a set of values.

Sample Mean

The average value of a sample, calculated by summing all the observations and dividing by the number of observations in the sample.

Range

The difference between the maximum and minimum values in a data set, indicating the spread of the data.

Standard Deviation

A metric that calculates the deviation or spread of data points in a dataset from the average value.