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प्रश्न
उत्तर
The turning effect produced by a force on a rigid body about a point, pivot or fulcrum is called the moment of force or torque. It is measured by the product of force and the perpendicular distance of the pivot from the line of action of force.
Moment of a force = Force x perpendicular distance of the pivot from the force.
Its SI unit is newton-metre (Nm).
APPEARS IN
संबंधित प्रश्न
Moment of force = force × perpendicular distance of force – from the pivoted point.
State two effects of a force when applied on a body.
Write the expression for the moment of force about a given axis of rotation.
State two factor on which moment of force about a point depends.
Classify the following amongst contact and non-contact forces.
Frictional force
Define couple.
Give any two effects of a force on a non-rigid body.
State the effects that a force can produce. Given one example of each.
Calculate the magnitude of the force of a couple, when the arm of the couple is 63 cm and the moment of the couple is 21 Nm.
A nut is opened by a wrench of length 25 cm. If the least force required is 10 N, find the moment of force needed to turn the nut.
