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Three blocks A,B and C of masses 4 kg, 2 kg and 1 kg respectively are in contact

Three blocks A,B and C of masses 4 kg, 2 kg and 1 kg respectively are in contact on a frictionless surface as shown in fig. If a force of 14 N is applied on the 4 kg block, the the contact force between A and B is

Options

(a) 6 N
(b) 8 N
(c) 18 N
(d) 2 N

Correct Answer:

6 N

Explanation:

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