Related Questions

A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
A Remain horizontal
B Slant up towards direction of pull
C Slant down towards direction of pull
D None of the above
Thee horizontal component of buoyant force is
A negligible
B same as buoyant force
C zero
D none of the above
The line of action of the buoyant force acts through the
A Centroid of the volume of fluid vertically above the body
B Centre of the volume of floating body
C Center of gravity of any submerged body
D Centroid of the displaced volume of fluid
Buoyant force is
A resultant force acting on a floating body
B equal to the volume of liquid displaced
C force necessary to keep a body in equilibrium
D the resultant force on a body due to the fluid surrounding it
The line of action of the buoyant force acts through the centroid of the
A submerged body
B volume of the floating body
C volume of the fluid vertically above the body
D displaced volume of the fluid
The buoyant force acting on a floating body is dependent on the
A Viscosity of the liquid
B Weight of the liquid displaced
C Depth of immersion of the body
D Surface tension of the liquid
Which of the following physicists explained the existence of Buoyant force?
A Archimedes
B Blaise Pascal
C Charles Augustine de Coulomb
D Issac Newton
If the weight of a body immersed in a fluid exceeds the buoyant force, then the body will
A rise until its weight equals the buoyant force
B tend to move downward and it may finally sink
C float
D none of the above
Buoyant force
A For non-symmetrical bodies is not vertical
B Depends on the depth of the submergence of the floating body
C Depends on the weight of the floating body
D None of these
The line of action of the buoyant force passes through the centre of gravity of the
A Submerged body
B Displaced volume of the fluid
C Volume of fluid vertically above the body
D Horizontal projection of the body

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