Two Blocks Connected by a String Are Pulled Across a Horizontal

question 27

Multiple Choice

Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of the blocks,as shown.The coefficient of kinetic friction between the blocks and the surface is 0.25.If each block has an acceleration of 2.0 m/s² to the right,what is the magnitude F of the applied force?

• A)25 N
• B)18 N
• C)11 N
• D)14 N
• E)7.0 N

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