Two boxes of mass m, =3.9 kg and m,=2.3 kg are made of different materials. The boxes in contact are pushed up an incline of angle 0 = 28" by a force applied to the mass m, of magnitude F=76 N. If the...

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Extracted text: Two boxes of mass m, =3.9 kg and m,=2.3 kg are made of different materials. The boxes in contact are pushed up an incline of angle 0 = 28" by a force applied to the mass m, of magnitude F=76 N. If the coefficient of kinetic friction between the surface of the incline and the mass m, is Hr. =0.25 and between the surface of the incline and the mass m, is Hk=0.1. m2 a) Determine the magnitude acceleration of both boxes (Hint: The combined object of the masses experiences the applied force, the kinetic friction force of mass m,and m, and the component of the gravitational force downhill) a = b) Determine the magnitude of the contact forces F12 = F21=