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प्रश्न
It is easier to open the door by pushing it at its free end.
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उत्तर
Moment of force is a product of force and perpendicular distance.
Torque is defined as Force x distance. Larger the distance from the fixed axis or hinge, larger the torque and hence it is easier to open the door
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संबंधित प्रश्न
A force always produces both the linear and turning motions.
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 |
To obtain a given moment of force for turning a body, the force needed can be decreased by
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A meter scale is provided at 10 cm mark and is balanced by suspending 400 g from 0 cm mark (fig.). Calculate the mass of meter scale.
State when the moment of force is positive and when it is negative.
Two similar vehicles are moving with the same velocity on the road, such that one of thus is loaded and the other one is empty which of the two vehicles will require larger force to stop?
Calculate the minimum distance between point of application of force and axis of rotation of a rigid body, if a force 125 N produces a moment of force of 25.75 Nm.
