πN/60
πN/180
2πN/60
2πN/180
C. 2πN/60
kg-m2
kg-m-s2
kg/m2
m4
Reversible machine
Non-reversible machine
Neither reversible nor non-reversible machine
Ideal machine
Angle between normal reaction and the resultant of normal reaction and the limiting friction
Ratio of limiting friction and normal reaction
The friction force acting when the body is just about to move
The friction force acting when the body is in motion
Two members with unknown forces of the frame
Three members with unknown forces of the frame
Four members with unknown forces of the frame
Three members with known forces of the frame
4
8
16
20
Potential energy only
Kinetic energy of translation only
Kinetic energy of rotation only
Kinetic energy of translation and rotation both
The kinetic energy of a body during impact remains constant.
The kinetic energy of a body before impact is equal to the kinetic energy of a body after impact.
The kinetic energy of a body before impact is less than the kinetic energy of a body after impact.
The kinetic energy of a body before impact is more than the kinetic energy of a body after impact.
Arm of man
Pair of scissors
Pair of clinical tongs
All of the above
In the shaded area
In the hole
At O
None of these
T.ω (in watts)
T.ω/60 (in watts)
T.ω/75 (in kilowatts)
T.ω/4500 (in kilowatts)
Maximum
Minimum
Zero
Infinity
m1/m2
m1. g. sin α
m1.m2/m1 + m2
m1. m2.g (1 + sin α)/(m1 + m2)
MS/3
MS/4
MS/5
None of these
20 N
40 N
120 N
None of these
Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction
Ratio of limiting friction and normal reaction
The friction force acting when the body is just about to move
The friction force acting when the body is in motion
Meet at one point, but their lines of action do not lie on the same plane
Do not meet at one point and their lines of action do not lie on the same plane
Meet at one point and their lines of action also lie on the same plane
Do not meet at one point, but their lines of action lie on the same plane
m₁. m₂. g/(m₁ + m₂)
2m₁. m₂. g/(m₁ + m₂)
(m₁ + m₂)/ m₁. m₂. g
(m₁ + m₂)/2m₁. m₂. g
Magnitude
Direction
Position or line of action
All of the above
Coplanar non-concurrent forces
Non-coplanar concurrent forces
Non-coplanar non-concurrent forces
Intersecting forces
Second moment of force
Second moment of area
Second moment of mass
All of these
Force
Work
Power
Velocity
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
Between 60 and 70 %
Between 70 and 80 %
Between 80 and 90 %
100 %
Static friction
Dynamic friction
Limiting friction
Coefficient of friction
Dyne
Watt
kg-m
Joule
1/2
2/3
3/2
2/4
kg-m²
m⁴
kg/m²
m³
Increase
Decrease
Not be effected
None of these
g/2
g
√2.g
2g
Area of contact
Shape of surfaces
Strength of surfaces
Nature of surface