Q.
Two bodies of masses m and 2m have same momentum. Their respective kinetic energies E1 and E2 are in the ratio
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a
1 : 2
b
2 : 1
c
1 : 2
d
1 : 4
answer is B.
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Detailed Solution
E=P22m. If momentum are same then E∝1m∴E1E2=m2m1=2mm=21
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