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If net force on a system is zero then (1) It's momentum is conserved (2) it's kinetic energy may increase (3) acceleration of its a constituent particle may be non zero (4) all of these. Kindly help.

If net force on a system is zero then
(1) It's momentum is conserved
(2) it's kinetic energy may increase 
(3) acceleration of its a constituent particle may be non zero 
(4) all of these.
Kindly help.

Grade:12th pass

2 Answers

Vikas TU
14149 Points
4 years ago
Hiii Janvi 
System momentum is always conserved if the net force acting on a system is zero.
System will start to rotate on its own axis so, KE may increase.
It can have aangular acceleration.
So, Option D is correct. 
Khimraj
3007 Points
4 years ago
Option D is correct.
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