Related Questions

A body of weight 'W' is required to move up on rough inclined plane whose angle of inclination with the horizontal is 'α'. The effort applied parallel to the plane is given by (where μ = tanφ = Coefficient of friction between the plane and the body.)
A P = W tanα
B P = W tan (α + φ)
C P = W (sinα + μcosα)
D P = W (cosα + μsinα)
The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is
A sinθ
B cosθ
C tanθ
D cosecθ
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
The force required to move the body up the plane will be minimum if it makes an angle with the inclined plane __________ the angle of friction.
A Equal to
B Less than
C Greater than
D None of these
A body will begin to move down an inclined plane, if the angle of inclination of the plane is ________ the angle of friction.
A Equal to
B Less than
C Greater than
D None of these
A body will begin to move down an inclined plane if the angle of inclination of the plane is _________ the angle of friction.
A Equal to
B Less than
C Greater than
D None of these
The angle which an inclined surface makes with the horizontal when a body placed on it is on the point of moving down, is called
A Angle of repose
B Angle of friction
C Angle of inclination
D None of these
The range of projectile on a downward inclined plane is ________ the range on upward inclined plane for the same velocity of projection and angle of projection.
A Less than
B More than
C Equal to
D None of these
If the direction of projection bisects the angle between the vertical and the inclined plane, then the range of projectile on the inclined plane is
A Zero
B Maximum
C Minimum
D None of these
The direction of projection should bisect the angle between the inclined plane and the vertical for a range of a projectile on inclined plane
A To be zero
B To be maximum
C To be minimum
D None of these

Next steps