How is the kinetic energy of a moving car affected if its mass is tripled and it's velocity becomes one fourth
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K.E= 1/2 mv²
M'=3m , V'=v/4
final K.E = 1/2 x 3m x v²/4²
=1/2x3mv²/16
=3/16(1/2mv²)
=3/16 times the initial K.E
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