Chapter 6, Problem 10P

Figure 6-20 shows an initially stationary block of mass m on a floor. A force of magnitude 0.500mg is then applied at upward angle θ = 20°. What is the magnitude of the acceleration of the block across the floor if the friction coefficients are (a) µ_s = 0.600 and µ_k = 0.500 and (b) µ_s = 0.400 and µ_k = 0.300?

Figure 6-20 Problem 10.