A 24-N Horizontal Force Is Applied to a 40-N Block

question 54

Multiple Choice

A 24-N horizontal force is applied to a 40-N block initially at rest on a rough horizontal surface.If the coefficients of friction are = 0.5 and = 0.4, the magnitude of the frictional force on the block is:

• A)12 N
• B)16 N
• C)20 N
• D)24 N
• E)40 N

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