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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.
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संबंधित प्रश्न
A half metre rod is pivoted at the centre with two weights of 20gf and 12gf suspended at a perpendicular distance of 6 cm and 10 cm from the pivot respectively as shown below.
1) Which of the two forces acting on the rigid rod causes clockwise moment?
2) Is the rod in equilibrium?
3) The direction of 20 kgf force is reversed. What is the magnitude of the resultant moment of the forces on the rod?
Match the column
| Column A | Column B |
| (a) Camel | (1) broad and deep foundation |
| (b) Truck | (2) broad feet |
| (c) Knife | (3) six or eight tyres |
| (d) High building | (4) sharp cutting edge |
| (e) Thrust | (5) atm |
| (f) Moment of force | (6) N |
| (g) Atmospheric pressure | (7) N m |
State one factor on which the magnitude of a non-contact force depends. How does it depend on the factor stated by you?.
Classify the following amongst contact and non-contact forces.
gravitation force
Classify the following amongst contact and non-contact forces.
electrostatic force
State two factors affecting the turning effect of a force.
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
State the effects that a force can produce. Given one example of each.
