A Block Is Pushed Across a Horizontal Surface by the Force

question 68

Multiple Choice

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, θ = 30°, and M = 3.0 kg, what is the magnitude of the acceleration of the block?

• A)2.8 m/s²
• B)2.3 m/s²
• C)1.8 m/s²
• D)3.3 m/s²
• E)5.4 m/s²

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