Question: An object A has half the mass and twice the velocity of object B . How are the kinetic energies of A and B related?

An object A has half the mass and twice the velocity of object B. How are the kinetic energies of A and B related? the kinetic energy of A is the same as that of B, the kinetic energy of B is twice that of A, the kinetic energy of A is twice that of B, or the kinetic energy of B is 4 times that of A

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