ROTATIONAL MOTION Quiz

• No effect
• Reduces force
• Greater moment arm produces greater torque for the same force
• Makes torque zero

• Equal to force
• Maximum
• Zero
• Infinite

• It always works perfectly
• Gravity disappears
• The body must be spherical
• Balancing finds only one possible position, not the exact CG without multiple trials

• To reduce cost
• To make it shiny
• To ensure the centre of gravity is at the geometric centre
• To decrease length

• No effect
• Closer edges increase stability
• Closer edges reduce stability by decreasing support base
• They make the rod heavier