Question

Two bodies with equal momentum have KE in the ratio 5:4. What will be the ratio of their masses be?

Answer 1

M1V1 = M2V2 ... M1^2 V1^2 = M2^2 V2^2

5 M1 V1^2 = 4 M2 V2^2

5 M1^2 V1^2 / M1 = 4 M2^2 V2^2 / M2

5 / M1 = 4 / M2

M2 / M1 = 4 / 5