The Total Force Needed to Drag a Box at Constant $\mu$

question 40

Multiple Choice

The total force needed to drag a box at constant speed across a surface with coefficient of kinetic friction $\mu$ k is least when the force is applied at an angle $\theta$ such that:

• A)sin\(\theta\)= \(\mu\)k.
• B)cos\(\theta\) = \(\mu\)k.
• C)tan\(\theta\)= \(\mu\)k.
• D)cot\(\theta\)= \(\mu\)k.
• E)sec\(\theta\) = \(\mu\)k.

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