ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 490

Question 2446

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Can the center of mass accelerate while individual particles move uniformly?

Yes, always
Only in gravity
Only if particles collide
No, if no external force acts

Question 2447

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What happens to the center of mass when a person walks inside a boat floating on still water?

It moves with the person
It moves forward
It sinks
It remains stationary if no external force acts

Question 2448

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How does the mass distribution affect the center of mass location?

It has no effect
It makes it heavier
It changes the total mass
It determines the position of the center of mass

Question 2449

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What is the main reason internal forces do not affect the center of mass motion?

They are too weak
They act only briefly
They are not real forces
They occur in equal and opposite pairs

Question 2450

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Which of the following systems has constant center of mass velocity?

A rocket accelerating upward
A ball falling under gravity
A car braking to a stop
A spacecraft drifting in deep space with no thrust