friction in what ways i can start dealing with it
A horizontal force F is applied to a block of mass M1. Another block of mass M2 is adjacent to M1 as shown below. The two blocks move to the right with constant velocity. The coefficient of kinetic (static) friction between the floor and each block is μk (μs).
https://online-s.physics.uiuc.edu/cg.../twoblocks.gif
What is the f, the magnitude of the frictional force that the floor exerts on M2?
f = μk (M1 + M2) g
f = μk M2 g
f = F
What is F21, the magnitude of the force that M2 exerts on M1?
F21 = 0
F21 = μk M2 g
F21 = F