40 N 40N The figure above shows the forces exerted on a block that is sliding on a horizontal surface: the gravitational force of 40 N, the 40N normal force exerted by the surface, and a frictional force exerted to the left. The coefficient of friction between the block and the surface is 0.20. The acceleration of the block is most nearly a. 1.0 m/s? to the right O b. 1.0 m/s2 to the left O c. 2.0 m/s? to the right d. 2.0 m/s? to the left

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