Question

Two balls of masses 4m and 8m are in motion with velocities 2v and v respectively. The ratio of their momentum would be : (a) 2 : 1 (b) 1 : 2 (c) 1 : 1 (d) 1 : 4

March 12, 2024

Answer

(c) 1 : 1

Reason — Given,

m₁ = 4m and m₂ = 8m

v₁ = 2v

v₂ = v

As, p = mv

Hence, ${p_1\over p_2} = {4m \times 2v\over 8m \times v}={8mv\over 8mv}$ =1:1

Hence, the ratio of their momentum = 1 : 1

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