A bar of length 'L' pivoted at 'O' is acted by a force 'F' at an angle 'ϴ' with vertical line. What is the moment of force?
Correct answer: C. LF cosϴ
- A. L sinϴ
- B. L cosϴ
- C. LF cosϴ
- D. LF sinϴ
Explanation
LF cosϴ: This option suggests that the moment of force is LF cosϴ. This is the correct answer. The moment of force, also known as torque, is calculated by multiplying the magnitude of the force (F) by the perpendicular distance (L) from the point of rotation (pivot) to the line of action of the force. The angle ϴ represents the angle between the force and the vertical line. The expression LF cosϴ correctly represents the moment of force in this scenario.
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