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Grade: 11
        Internal forces acting within a system of particles can alter the kinetic energy of the system but not the linear momentum of the system...???How?
one year ago

Answers : (3)

Diksha Chandna
36 Points
							Kinetic energy doesn`t have to be conserved since, in any closed system with only conservative forces, mechanical energy is conserved.kinetic energy isn`t conserved (inelastic collisions for example), hence we do not know kinetic energy is conserved.Talking about momentum F external=dp/dt Or if External Force =0 then dp vector=0 or we can say that ∆p vector =0 which implies that initial momentum=final momentum....So if the net external force on a system of particles is zero then net momentum of the system will remain conserve..Approve it if I m right...
						
one year ago
Vaibhav
35 Points
							thnq diksha ;) ....but can you also answer some of my biology questions???  coz i took pcb....answer this question plzzzz...(chemistry) shape of sai251?
						
one year ago
Diksha Chandna
36 Points
							Sorry I can`t solve ur biology questions since I m not an biology student...I can solve ur pcm doubt..
						
one year ago
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