Knowing that identical blocks with a mass of 4kg, are initially at rest and the coefficients of static is 0.8 and kinetic is 0.5. Find the magnitude of the friction force in each case (Hint: You'll need to figure out whether friction is static or kinetic in each case)
Case A: Applied force of 10N to the right.
Case B: Applied force of 50N to the right.
Case C: Applied force of 100N to the right