Dana Uses a Rope to Pull a Box That Weighs

question 19

Multiple Choice

Dana uses a rope to pull a box that weighs 600 N across a level surface with constant velocity.The rope makes an angle of 40° above the horizontal and the tension in the rope is 400 N.What is the coefficient of friction?

• A)0.89
• B)0.88
• C)2.00
• D)1.19
• E)​0.84

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