(25 points) A box with mass m is placed on top of a box with mass 2m as shown in thefigure. An external force F(t) = αt, where α is a positive constant, acts on the bottomblock and causes it to accelerate from rest at t = 0. The two blocks have coefficient ofstatic friction µ between them, and the bottom box slides on a frictionless surface. Atwhat time will the top block begin to slide relative to the bottom block? It seems like the relationship would just be when F(t) > µmg which would be t = (µmg)/α but the book is saying it would be 3(µmg)/α I know it has to do with the relations of the masses and all that but I cant figure out how to actually solve it

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Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: