A rifle fires a bullet. Immediately after the bullet is fired, which of the foll

Question

A rifle fires a bullet. Immediately after the bullet is fired, which of the following is NOT true?
a)The force on the rifle due to the bullet and the force on the bullet due to the rifle have the same magnitude.
b)The rifle and the bullet have the same kinetic energy.
c)The impulse on the rifle due to the bullet and the impulse on the bullet due to the rifle have the same magnitude.
d)The rifle and the bullet have the same magnitude of momentum.
e)The rifle and the bullet do not have the same kinetic energy

Explanation / Answer

MV and mv will be same .

but MV^2 /2 and mv^2 /2 we can't say about them . so K.E> are not samew.

b)The rifle and the bullet have the same kinetic energy.       it not trrue

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