Less than
Greater than
Equal to
None of these
A. Less than
(1/2π). √(l/g)
(1/2π). √(g/l)
2π. √(l/g)
None of these
All the forces are equally inclined
Sum of all the forces is zero
Sum of resolved parts in the vertical direction is zero (i.e. ΣV = 0)
None of these
Static friction
Dynamic friction
Limiting friction
Coefficient of friction
Principle of independence of forces
Principle of resolution of forces
Principle of transmissibility of forces
None of these
50 mm
75 mm
87.5 mm
125 mm
Area of the triangle
Twice the area of the triangle
Half the area of the triangle
None of these
One-fourth of the total height above base
One-third of the total height above base
One-half of the total height above base
Three-eighth of the total height above the base
Energy
Mass
Momentum
Angle
38 m
62.5 m
96 m
124 m
A force acting in the opposite direction to the motion of the body is called force of friction
The ratio of the limiting friction to the normal reaction is called coefficient of friction
A machine whose efficiency is 100% is known as an ideal machine
The velocity ratio of a machine is the ratio of load lifted to the effort applied
Lie
Do not lie
Either A or B
None of these
At distance from the plane base 3r
At distance from the plane base 3r
At distance from the plane base 3r
At distance from the plane base
Angle between normal reaction and the resultant of normal reaction and the limiting friction
Ratio of limiting friction and normal reaction
The ratio of minimum friction force to the friction force acting when the body is just about to move
The ratio of minimum friction force to friction force acting when the body is in motion
ω
ωr
ω2r
ω/r
Nature of surfaces
Area of contact
Shape of the surfaces
All of the above
ω.y
ω2.y
ω2/y
ω3.y
Potential energy
Kinetic energy
Power
None of these
tan(α + φ)/tanα
tanα/tan (α + φ)
tan(α - φ)/tanα
None of these
Coplanar concurrent forces
Coplanar non-concurrent forces
Non-coplanar concurrent forces
None of these
Two times
Same
Half
None of these
Density of metal can't be determined
Metal is twice as dense as water
Metal will float in water
Metal is twice as dense as unknown fluid
mr2/2
mr2/4
mr2/6
mr2/8
Equal to
Equal and opposite to
Less than
Greater than
Is the turning effect produced by a force, on the body, on which it acts
Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force
Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken
All of the above
ω/2π
2π/ω
2π × ω
π/ω
Both the balls undergo an equal change in momentum
The change in momentum suffered by rubber ball is more than the lead ball
The change in momentum suffered by rubber ball is less than the lead ball
None of the above
h [(2a + b)/(a + b)]
(h/2) [(2a + b)/(a + b)]
(h/3) [(2a + b)/(a + b)]
(h/3) [(a + b)/(2a + b)]
94.9 cm
99.4 cm
100 cm
101 cm
kilogram
Newton
Watt
Dyne
One point
One plane
Different planes
Perpendicular planes