A block is pushed across a horizontal surface by the force shown. If the coefficient of kinetic friction between the block and the surface is 0.30, F = 20 N, 8 = 30°, and M = 3.0 kg, what is the magnitude of the acceleration of the block? M 2.3 m/s2 1.8 m/s2 5.4 m/s2 3.3 m/s2 O 2.8 m/s2 O O O O
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