if the k.e of a particle is zero ,what is its linear momentum? If the total energy of the particle is 0 ,is its linear momentum necessarily 0?
dear syed
if kinetic energy is 0 then there will be no linear velocity hence no linear momentam ...
now total energy = sum of energy possed by particle
=KE + PE + heat energy so on
consider if there is only potential energy & kinetic energy then
Total energy = 0 = KE+PE
KE = -PE ............1
from eq 1 it can be said that if PE is equal to KE but with -ve PE then particle may have KE & hence linear momentam...
eg => if we throw a mass M from surface of earth to infinity then its total energy should be zero ....
TE = PE + KE = 0
KE = GMMe/R ............2
hence particle will have linear momentam.....
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