A Rod of Length L Is Pivoted About Its Left

question 42

Multiple Choice

A rod of length L is pivoted about its left end and has a force F applied perpendicular to the other end. The force F is now removed and another force F' is applied at the midpoint of the rod. If F' is at an angle of 30^o with respect to the rod, what is its magnitude if the resulting torque is the same as when F was applied?

• A) F
• B) 2F
• C) 3F
• D) 4F

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