Theory of machines - Engineering

Q1:

A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance apart. The two masses form an equivalent dynamical system, if

A the sum of the two masses is equal to the total mass of body

B the centre of gravity of the two masses coincides with that of the body

C the sum of mass moment of inertia of the masses about their centre of gravity is equal to the mass moment of inertia of the body

D all of the above

ANS:D - all of the above

Explanation: No answer description is available.