how is kinetic energy of the body effected if its mass is double and velocity reduces to half
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The factor by which the kinetic energyof a moving body changes when its speed is reduced to half. A body ofmass 50 kg has a momentum of 3000 kg ms-1. ... The ratio of its initialkinetic energy and final kinetic energy,if the mass of the body is doubled andits velocity is halved will be.
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kinetic energy= ½mv²
if mass double
KE= ½ 2m v²
= mv²
KE doubles
if velocity reduce to half
KE= ½ m v²/4
= ⅛mv²
KE reduces by ¼
if mass double
KE= ½ 2m v²
= mv²
KE doubles
if velocity reduce to half
KE= ½ m v²/4
= ⅛mv²
KE reduces by ¼
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