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प्रश्न
What is meant by the term ‘moment of force’? If the moment of force is assigned a negative sign then will the turning tendency of the force be clockwise or anti-clockwise?
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उत्तर
It is equal to the product of the magnitude of the force and the perpendicular distance of the line of action of a force from the axis of rotation. If the moment of force is assigned a negative value, it means the clockwise tendency of force.
संबंधित प्रश्न
How does the magnitude of this non-contact force on the two bodies depend on the distance of separation between them?
Name the factors affecting the turning effect of a body
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A nut is opened by a wrench of length 10 cm. if the least force required is 5.0 N. find the moment of force needed to turn the nut.
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A jack screw is provided with a long arm. Explain why?
State the units of moment of force.
The diagram in Fig shows two forces F1 = 5 N and F2 = 3 N acting at points A and B respectively of a rod pivoted at a point O, such that OA = 2 m and OB = 4 m.
Calculate:
- the moment of force F1 about O.
- the moment of force F2 about O.
- total moment of the two forces about O.
