Which of the following is true of a group of two particles? A If the particles...
Which of the following is true of a group of two particles?
A If the particles have total kinetic energy of zero, they must also have total momentum of zero.
B If the particles have total momentum of zero, they must also have total kinetic energy of zero.
C Both of these are true.
D Neither of these are true.
Homework Answers
(A) the particles have total kinetic energy of zero they must have also total momentum of zero.
This is because forbsystem of particles to have zero kinetic energy their masses should be zero or velocity should be zero.
Second option is not true because total momentum of a system can be zero then they may have the kinetic energy this is the case of collision of two particles.
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