If two particles have equal kinetic energies, are their momentaequal? yes, alway

Question

If two particles have equal kinetic energies, are their momentaequal?
yes, always
no,unless they are moving perpendicular to each other
no,never
yes, aslong as their masses are equal
yes, ifboth their masses and directions of motion are thesame

yes, always
no,unless they are moving perpendicular to each other
no,never
yes, aslong as their masses are equal
yes, ifboth their masses and directions of motion are thesame
yes, always
no,unless they are moving perpendicular to each other
no,never
yes, aslong as their masses are equal
yes, ifboth their masses and directions of motion are thesame
yes, always
no,unless they are moving perpendicular to each other
no,never
yes, aslong as their masses are equal
yes, ifboth their masses and directions of motion are thesame

Explanation / Answer

         If thekinetic energies are equal then                          (1/2)m1*U12 =(1/2)m2*U22                                  m1*U12=m2*U22                                           P12 / m1 =m2*U22                                             P12 = P22 (m1/m2)                       yes,as long as their masses are equal

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