For a two body system in absence of external forces, the kinetic energy as measured from ground frame is ๐พ_0 and from centre of mass frame is ๐พ_๐ถ๐‘€. Pick up the CORRECT statement. 1. The kinetic energy as measured from center of mass frame is least 2. Only the portion of energy ๐พ_๐ถ๐‘€ can be transferred from one form to another due to internal changes in the system. 3. The system always retains at least ๐พ_0- ๐พ_๐ถ๐‘€ amount of kinetic energy as measured from ground frame irrespective of any kind of internal changes in the system. 4. The system always retains at least K c m ๐พ ๐‘ ๐‘š amount of kinetic energy as measured from ground frame irrespective of any kind of internal changes in the system.

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