Momentum and CollisionHard
Question
If the resultant of all the external forces acting on a system of particles is zero, then from an inertial frame, one can surely say that
Options
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
Solution
Linear momentum remains constant if net external force on the system of particles is zero.
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