Problem: A 22.0-kg crate is pulled along a horizontal floor by the ideal arrangement shown in figure below. The force F is 300 N. The coefficient of friction between the crate and the floor is 0.270. What is the acceleration of the crate? 2. Relevant equations F = ma Friction = (coefficient)(normal force) 3. The attempt at a solution I tried F - Friction = ma, but I did not get the correct answer. Please help.