relation between momentum and kinetic energy with explanation
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Explanation:
P=mv. And kinetic energy =1/2 mv^2
So p=mv, m=p/v
So ke= 1/2 X (p/v) X v^2
=1/2XpXv
K.E.=(pv)/2
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Relationship between kinetic energy and momentum :
K.E = 1/2 mv² (1)
P = mv or v = P/m (2)
Substitute value of v = p/s in (1) :
K.E = 1/2 m(p/m)²
K.E = p²/2m
p² = 2 mK.E
∴ Kinetic energy and momentum are related as :
p = √2mK.E
K.E = p²/2m
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