A 400-Kg Block Rests Between the Floor and a 3

question 1

Multiple Choice

A 4.00-kg block rests between the floor and a 3.00-kg block as shown in the figure.The 3.00-kg block is tied to a wall by a horizontal rope.If the coefficient of static friction is 0.800 between each pair of surfaces in contact,what horizontal force F must be applied to the 4.00-kg block to make it move?

• A)16.2 N
• B)54.9 N
• C)21.1 N
• D)23.5 N
• E)78.4 N

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