ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 466

Question 2326

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Why do internal forces not affect the center of mass trajectory?

They are too weak
They act slowly
They cancel out in pairs due to Newton's third law
They are random

Question 2327

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In the lab frame, how is the velocity of a decay product determined?

By multiplying mass
By subtracting energies
By vector addition of CM velocity and relative velocity
By averaging speeds

Question 2328

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What does c1 represent in the momentum equation Px = c1?

Initial position
Acceleration in x
Constant value of x-component of momentum
Energy in x-direction

Question 2329

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How does the center of mass behave in an explosion in space?

Stops
Accelerates
Moves with constant velocity
Disappears

Question 2330

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What is the main purpose of using scalar momentum equations?

To increase complexity
To ignore directions
To analyze motion in each spatial direction independently
To cancel forces