Question
Two bodies of masses m and 4 m are moving with equal linear momentum . The ratio of their kinetic energies is
Answer: Option B
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`(E_(k_1))/(E_(k_2))`
=`((p_1^2)/(2m_1))/((p_2^2)/(2m_2))`
=` m_2/m_1`
=`(4m)/(m)` (`because p_1 = p_2`)
= 4 : 1
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