Question

A 2kg mass, m1 and a 10 kg mass, m2 are in contact on a horizontal frictionless surface. a constant horizontal force 13.7 N in the positive X direction is applied to m1 and a constant horizontal force 10.7 N in the negative X direction is applied to m2. the masses stay in contact whole they move. find the magnitude of the contact force between the two masses.
answers can be: 27.4, 13.2, 14.2, 11.42, 0.5 (all are N)
help pls

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