Advertisements
Advertisements
प्रश्न
A tall building has wide foundations.
Advertisements
उत्तर
Foundation of buildings are kept wide so that the weight of the building may act on a larger area. As a result, it will exert less pressure on the ground. This avoids sinking of building into the earth.
APPEARS IN
संबंधित प्रश्न
State two factors on which affect moment of force.
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.
It is easier to open the door by pushing it at its free end.
A spanner (or wrench) has a long handle. Why?
A nut is opened by a wrench of length 10 cm. if the least force required is 5.0 N. find the moment of force needed to turn the nut.
Two forces each of magnitude 10 N act vertically upwards and downwards respectively at the two ends A and B of a uniform rod of length 4 m which is pivoted at its midpoint O as shown in the figure. Determine the magnitude of the resultant moment of forces about the pivot O.
Explain the motion of a planet around the sun in a circular path.
Classify the following amongst contact and non-contact forces.
Frictional force
State whether the moment of force is a scalar or vector quantity?
