Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
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
PhysicsCenter of Mass Momentum and CollisionJEE AdvancedJEE Advanced 2009 (Paper 1)
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:
2756 Upvotes Verified Answer
The correct answers are:
linear momentum of the system does not change in time
On a system of particles if,
$$
\Sigma \overrightarrow{\mathbf{F}}_{\mathrm{ext} .}=0
$$
then $\quad \overrightarrow{\mathbf{P}}_{\text {system }}=$ constant
No other conclusions can be drawn.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.