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Two bodies of masses m and 4m are moving with equal linear momentum. The ratio of their kinetic energies is:

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Two bodies of masses m and 4m are moving with equal linear momentum. The ratio of their kinetic energies is:

(A) 1 : 4 

(B) 4 : 1 

(C) 1 : 1 

(D) 1 : 2

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1 Answer

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Best answer

Correct option (B) 4 : 1

Explanation:

k1/k2 = 1/2 = (P2/m)/(p2/2)(4m) = 4/1

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