Center Of Mass

Assertion: If there are no external forces, the center of mass of a double star moves like a free particle. Reason: If we go to the center of mass frame, then we find that the two stars are moving in a circle about the center of mass, which is at rest.

Assertion: If there are no external forces, the center of mass of a double star moves like a free particle. Reason: If we go to the center of mass frame, then we find that the two stars are moving in a circle about the center of mass, which is at rest.

If the center of mass of a system of three particles of masses 1kg,2kg,3kg is at the point (1m,2m,3m) and center of mass of another group of two partices of masses 2kg and 3kg is at point (-1m,3m,-2m) . Where a 5kg particle should be placed, so that center of mass of the system of all these six particles shifts to the center of mass of the first system?

Four point masses are placede at four corners of a square of side 4m as shown. Match the following columns. {:("Column1","Column2"),("A x-coordinate of center of mass of 4kg and 2kg","P (7//2)m"),("B x-coordinates of center of mass of 4kg 2kg and 3kg","Q (4//3)m"),("C y-coordinate of center of mass of 1kg 4kg and 3kg","R 3m"),("y-coordinate of center of mass of 1kg and 3kg","(20/9)m"):}

Four point masses are placede at four corners of a square of side 4m as shown. Match the following columns. {:("Column1","Column2"),("A x-coordinate of center of mass of 4kg and 2kg","P (7//2)m"),("B x-coordinates of center of mass of 4kg 2kg and 3kg","Q (4//3)m"),("C y-coordinate of center of mass of 1kg 4kg and 3kg","R 3m"),("y-coordinate of center of mass of 1kg and 3kg","(20/9)m"):}

A mass is at the center of a square, with four masses at the corners as shown. Rank the choices according to the magnitude of the gravitational force on the center mass.

Choose the correct statement about the center mass of a body,