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Physics 19 Online
OpenStudy (anonymous):

total momentum is not always conserved .true or false.if true explain if false explain

OpenStudy (anonymous):

is conserved ,when no force act on system that you define .maybe you define a system that force act on it so total momentum is not conserved for more information see Wikipedia

OpenStudy (anonymous):

can u please b more precise as a physisit

OpenStudy (anonymous):

suppose this figure :|dw:1329061665329:dw| momentum will not conserve ,if you take body(just body) for system ,hence friction act on system,now assume body+ground for system here momentum will conserve hence all of force that act ,are interior

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