ROTATIONAL MOTION MCQ Quiz: GKFix - Bridge of Knowledge - Page 510

Question 2546

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What is the nature of the centre of mass in a symmetric body?

It lies outside
It is shifted to one side
It lies at the geometric centre
It is undefined

Question 2547

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What is the foundation of Eq. (6.8)?

Integration of force
Differentiation of momentum
Differentiation of the centre of mass position with respect to time
Summation of energies

Question 2548

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How does the centre of mass move when external force is constant?

With variable acceleration
With decreasing speed
With constant acceleration
In oscillation

Question 2549

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What is the implication of constant centre of mass velocity?

All forces are zero
Internal forces are zero
Net external force is zero
The system is at rest

Question 2550

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If a body is pivoted at its centre of mass, what is its rotational equilibrium?

Always unstable
Never in equilibrium
It is in rotational equilibrium if no net torque
It rotates automatically