Two Objects of Mass M₁ = 2m and M₂ =

question 31

Multiple Choice

Two objects of mass m₁ = 2m and m₂ = m move around a rotation axis A in parallel circles of radii r₁ = r and r₂ = 2r with equal tangential speeds.As they rotate,forces of equal magnitude are applied opposite to their velocities to stop them.Which statement is correct?

• A)m₂ will stop first because it has the larger initial angular velocity.
• B)m₁ will stop first because it has the smaller radius.
• C)m₂ will stop first because the torque on it is greater.
• D)m₁ will stop first because it has the smaller moment of inertia.
• E)Both objects will stop at the same time because the angular accelerations are equal.

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Definitions:

Asymmetrical

Lacking symmetry; when two halves of something do not match or when a set of data is not evenly distributed around the mean.

Modality

A method of engagement or the way in which something exists or is experienced.

Variability

A statistical measure that expresses the degree of dispersion or spread in a data set, indicative of how much individuals within the set differ.

Symmetry

A property of shapes or designs where one half is a mirror image of the other half.