Home › CBSE Class 11 › Physics › Systems of Particles and Rotational Motion › Per NCERT Ex 6.1, three particles of mass 100 g,…
Per NCERT Ex 6.1, three particles of mass 100 g, 150 g, 200 g sit at the vertices of an equilateral triangle. The CM coincides with the centroid?
AYes, irrespective of mass
BNo, the CM is shifted toward the heavier mass
CNo, the CM is exactly at the lightest mass
DYes, always at the centroid
Answer & Solution
Correct answer: B. No, the CM is shifted toward the heavier mass
NCERT Ex 6.1: only for equal masses is the CM at the centroid. With unequal masses the CM shifts toward the heavier vertex.
Related questions
The radius of gyration relates the moment of inertia to the body's:The kinetic energy of a rolling body is the sum of translation and:Rotation about a fixed axis is directly analogous to:The parallel axes theorem adds to the centre of mass value the mass times:In the moment of inertia formula, r is the distance from the axis that is:The centre of gravity is where the total gravitational torque is:Rotational equilibrium requires the total external torque to be:Translational equilibrium requires the total external force to be: