Question

Select One Correct Option from the following: If the resultant of all the external forces acting on a system of is zero, then from an inertial frame, one can surely say that,
(A) linear momentum of the system does not change in time.
(B) kinetic energy of the system does not change in time.
(C) angular momentum of the system does not change in time.
(D) potential energy of the system does not change in time.

Answer 1

d option is correct I think

Answer 2

Potential energy of the system does not change in time d is correct

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