1. The problem statement, all variables and given/known data A block of mass m rests on the left edge of a block of length L and mass M. Coefficient of kinetic friction between m and M is u. There is no friction between the bottom block (M) and the floor. A constant horizontal force F is applied to mass m, setting it in motion. How long will it take the block m to make it to the right of the bigger block? How far does the block M move in the process? view attached file for diagram. 2. Relevant equations F = u R s = ut + 1/2 at^2 3. The attempt at a solution Net forfard force on m is = F - fk = F - uR1 = F - umg Newton's second law: a = (F - umg)/m s = 0 + 1/2 a t^2 L = 1/2 a t^2 solve for t: = It was given that L = 3 m, M= 8kg, m = 2kg , u = 0.300 and F = 10 N t =1.7 s answer given in the book for t = 2.13 s. I am missing something. Can you point out what might be wrong? thank you.