ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 511

Question 2551

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What is the role of mass distribution in determining the centre of mass?

No role
Minor role
It directly determines the position
It affects only rotation

Question 2552

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How is the position of the centre of mass calculated for discrete particles?

Simple average of positions
Geometric mean
As a mass-weighted average of position vectors
Random selection

Question 2553

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What happens to the centre of mass during a collision between two bodies?

It stops
It changes direction randomly
Its motion remains unaffected if no external force acts
It accelerates

Question 2554

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What is the primary reason for defining the centre of mass?

To find the geometric centre
To measure density
To simplify the motion analysis of extended bodies
To calculate volume

Question 2555

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How is the centre of mass analogous to a point mass?

It has the same density
It is always smaller
It responds to external forces like a point mass
It has zero volume