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प्रश्न
State two factors on which moment of the force about a point depends.
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उत्तर
Moment of force depends on two factors:
(i) Magnitude of force applied.
(ii) Distance of line of action of the force from the axis of rotation.
संबंधित प्रश्न
Name the factors affecting the turning effect of a body
Write the expression for the moment of force about a given axis of rotation.
It is easier to open the door by pushing it at its free end.
Name of S.I. unit of momentum.
Write the expression for calculating the moment of force about a given an axis.
A, B and C are the three forces each of magnitude 4 N acting in the plane of the paper as shown in Figure. The point O lies in the same plane.
- Which force has the least moment about O? Give a reason.
- Which force has the greatest moment about O? Give a reason.
- Name the forces producing
(a) Clockwise
(b) anticlockwise moments. - What is the resultant torque about the point O?
Classify the following amongst contact and non-contact forces.
normal reaction force,
Classify the following amongst contact and non-contact forces.
electrostatic force
A couple of 15 N force acts on a rigid body, such that arm of couple is 85 cm. Calculate moment of couple in the SI system.
