1. The problem statement, all variables and given/known data A block of mass 1.4 kg rests on a cart of 3.4 kg. The static friction between them is (mew) =.79 What is the maximum acceleration in m/s^2 the cart can undergo over a frictionless surface before the block begins to slide? 2. Relevant equations F (subscript ap) = mew x g x (m1 + m2) 3. The attempt at a solution F = .79 x 9.81 x 4.8 F= 37.19952 (I rounded appropriately when entering answer.) Yet I'm told this is wrong.... what am I missing?