Question

During collision between the objects,

• A. The kinetic energy of center of mass of the system remains constant
• B. The kinetic energy of center of mass of the system increases
• C. The kinetic energy of center of mass of the system decreases
• D. The kinetic energy of center of mass of the system can increases or decrease depending upon the situation

Answer 1

The correct option is A The kinetic energy of center of mass of the system remains constant

If a body is not elastic the is E will deform. The body and change is irreversible the kinetic energy will be transformed into heat, sound etc and will not be available.

So kinetic energy of center of mass is constant given statement is valid.

Hence, the answer is the kinetic energy of center of mass of the system remains constant.