ROTATIONAL MOTION

How does the position vector r influence the calculation of torque?

• It only affects mass
• It reduces speed
• It determines the moment arm and direction of torque
• It changes time

What is the relationship between the rate of change of angular momentum and applied torque?

• Torque is half
• They are unrelated
• They are equal
• Torque is negative

Why is angular momentum a conserved quantity in isolated systems?

• Because friction stops it
• Because mass vanishes
• Because there is no external torque to change it
• Because time stops

What is the consequence of violating one of the six equilibrium conditions in 3D?

• Nothing happens
• The body glows
• The body will accelerate in the corresponding direction or axis
• It changes color

How does the principle of moments relate to rotational equilibrium?

• Moments are irrelevant
• All moments must be zero
• The sum of clockwise moments equals the sum of counterclockwise moments
• Moments add up to infinity