Advertisements
Advertisements
Question
A tall building has wide foundations.
Advertisements
Solution
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
RELATED QUESTIONS
State two factors on which affect moment of force.
A spanner of length 10 cm is used to open a nut by applying a minimum force of 5.0 N. Calculate the moment of force required.
State the relationship between force, mass and acceleration. Draw graphs showing the relationship between Acceleration and force for a constant mass.
Calculate the acceleration produced in a body of mass 50 g when acted upon by a force of 20 N.
State one way to reduce the moment of given force about a given axis of rotation.
A body is acted upon by two forces of magnitude F but in opposite directions. State the effect of the force if both forces act at the same point of the body.
Explain the motion of a planet around the sun in a circular path.
Give an example of the following uses of a machine:
to change the direction 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?
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.
