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प्रश्न
To obtain a given moment of force for turning a body, the force needed can be decreased by
विकल्प
applying the force at the pivoted point
applying the force very close to the pivoted point
applying the force farthest from the pivoted point
none of the above
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उत्तर
applying the force farthest from the pivoted point
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संबंधित प्रश्न
How does the magnitude of this non-contact force on the two bodies depend on the distance of separation between them?
Less force is needed when applied at a farther distance from the pivoted point.
In a door, handle is provided ......... from the hinges.
Is moment of force a scalar or a vector?
State two factor on which moment of force about a point depends.
A body is acted upon by two forces of magnitude F but in opposite directions. State the effect of the force if both forces act at the same point of the body.
Give an example for each of the following uses of a machine:
to change the point of application of force
Write the expression for the moment of force about a given axis.
The diagram shows a uniform metre rule weighing 100gf, pivoted at its centre O. Two weights 150gf and 250gf hang from the point A and B respectively of the metre rule such that OA = 40 cm and OB = 20 cm. Calculate :
the difference of anticlockwise and clockwise moment
The perpendicular distance between the point of application of force and turning point is 1.75 m when a force of 80 N acts on a rigid body. Calculate the moment of force.
