Question

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

Answer 1

Correct option (B) 4 : 1

Explanation:

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