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प्रश्न
The S.I. unit of force is kgf. (kilogram-force)
विकल्प
True
False
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उत्तर
False.
The S.I. unit of force is newton.
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संबंधित प्रश्न
A force is applied on (i) a non-rigid body and (ii) a rigid body. How does the effect of the force differ in the above two cases?
Thrust is the ............ force acting on a surface.
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 |
In Fig. a force F is applied in a direction passing through the pivoted point O of the body. Will the body rotate? Give reason to support your answer.
What are contact forces? Give two Example
State Newton's first law of motion. Why is it called the law of inertia?
Write the expression for calculating the moment of force about a given axis.
What do you understand by the clockwise and anticlockwise moment of force? When is it taken positive?
Define the moment of force.
State one factor on which the magnitude of a non-contact force depends. How does the magnitude of a non-contact force change along with distance?
