ROTATIONAL MOTION

What is the y-coordinate of the centroid of triangle OAB?

• √3/6 m
• √3/9 m
• √3/12 m
• √3/4 m

What is the x-coordinate of the centroid of triangle OAB with equal masses?

• 0.2 m
• 0.25 m
• 0.3 m
• 0.33 m

If all masses were equal in the triangle, where would the center of mass be?

• At point O
• At point A
• At point B
• At the centroid

What is the role of symmetry in finding center of mass?

• It has no role
• It complicates the problem
• It helps locate the center without calculation
• It only applies to circles

What is the center of mass of a uniform rectangular lamina?

• At one corner
• At the midpoint of the longer side
• At its geometric center
• At the top edge