logo

Ask Questions, Get Answers

X
 

If the resultant of all external forces acting on a system of particles 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 system does not change in time.

c) Angular momentum of system does not change in time.

d) potential energy of system does not change in time .

1 Answer

It is inertial frame, it means that the frame of reference does not have an acceleration, and so does not have a psudo force
$ \sum F = 0,=>\large\frac{dp}{dt}=0$
$p$ is constant
kinetic energy and potential energy does not remain constant
Hence a is the correct answer.
answered Nov 28, 2013 by meena.p
edited Mar 14, 2014 by meena.p
 

Related questions

Download clay6 mobile appDownload clay6 mobile app
...
X