ROTATIONAL MOTION Quiz

• It becomes infinite
• It becomes equal to total mass
• It becomes zero
• It doubles

• Y = (y1 + y2 + y3)/3
• Y = (m1y1 + m2y2 + m3y3)/(m1 + m2 + m3)
• Y = m1y1 + m2y2 + m3y3
• Y = (m1 + m2 + m3)/(y1 + y2 + y3)

• At the circumcentre of the triangle
• At the orthocentre of the triangle
• At the centroid of the triangle formed by the particles
• Outside the triangle

• It is always at the geometric centre
• It is the point with maximum mass
• It represents the average position of mass in the system
• It is the point where velocity is zero

• X = ∑mi xi
• X = (∑mi xi)/M
• X = ∑xi/M
• X = M/(∑mi xi)