ROTATIONAL MOTION

How does the mass of a system influence the acceleration of its center of mass?

• Mass has no effect on acceleration
• Greater mass causes greater acceleration
• Mass only affects direction
• Greater mass results in smaller acceleration for the same force

What is the condition for the conservation of total linear momentum in a system?

• Internal forces are zero
• Only gravity is acting
• The system is at rest
• Net external force is zero

What happens to the center of mass of a system when it undergoes an internal rearrangement of mass?

• It accelerates forward
• It stops moving
• It moves in a circle
• Its motion remains unchanged if no external force acts

How is the linear momentum of a particle defined in classical mechanics?

• p = m/a
• p = F·t
• p = m²v
• p = mv

What is the correct expression for Newton’s second law for a system of particles?

• F = ma for the largest particle
• F = Mv
• F = dp/dt for each particle only
• F_ext = dP/dt