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Two bodies have masses in the ratio 3:1. They experience ...

Two bodies have masses in the ratio 3:1. They experience forces which impart to them acceleration in the ratio 2:9 respectively. Find the ratio of forces the masses experienced.

A.

1 : 4

B.

2 : 1

C.

2 : 3

D.

2 : 5

Correct answer is C

Let the forces be F1, and F2.

F1 = m1 a1 = 3 x 2 = 6N

F2 = m2 a2 = 1 x 9 = 9N

F1 : F2 = 6:9 = 2:3

Thus ratio of forces is 2: 3