Block-On-Block motion on horizontal surface. No friction at all.

#frictionless #newtonslaws #tricky #block #physicshelp #dynamics
Two blocks (block-on-block) of given masses are at rest on the horizontal surface. All possible frictional forces are absent. A horizontal force F is applied to the lower block. Find its acceleration. The high school and undergraduate students who learned concepts of friction and know the second Newton’s law are able to solve the problem. Check yourself!!!