hi, im trying to figure out how to approach this question. i know its a relatively simple problem, but i just need to do the setup appropriately. two blocks of m1=2 kg and m2=1 kg are in contact on a horizontal frictionless surface in the respective order, left to right. A force of F=3N is applied to m1, towards the right. Calculate the magnitude 'f' between the two blocks. Also, find the magnitude if the force was applied in the opposite direction. Please help me get started with the setup for this question. Thanks!!