A 400-N Block Is Dragged Along a Horizontal Surface by an Applied

question 61

Multiple Choice

A 400-N block is dragged along a horizontal surface by an applied force as shown.The coefficient of kinetic friction is u_k = 0.4 and the block moves at constant velocity.The magnitude of is:

• A)100 N
• B)150 N
• C)200 N
• D)290 N
• E)400 N

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