0.33
0.44
0.57
0.67
D. 0.67
Algebraic sum of the resolved parts of the forces in the direction
Arithmetical sum of the resolved parts of the forces in the direction
Difference of the forces multiplied by cosine θ°
Sum of the forces multiplied by the tangent θ°
That polygon of forces must close
That resultant couple must be zero
Both (A) and (B)
None of the above
The resultant force and resultant couple are always zero
The resultant force is zero but resultant couple is not zero
The resultant force is zero but resultant couple may not be zero
The resultant force and resultant couple both may not be zero
Disc with larger density
Disc with smaller density
Both discs will have same rotational inertia
None of the above
The force of friction always acts in a direction opposite to that in which a body is moving
The magnitude of the kinetic friction bears a constant ratio to the normal reaction between two surfaces. The ratio being slightly less than that in the case of limiting friction
For moderate speeds the force of friction remains constant but decreases slightly with the increase of speed
All the above
Towards the wall at its upper end
Away from the wall at its upper end
Upwards at its upper end
Downwards at its upper end
Zero
5 m/sec
10 m/sec
None of these
Directly proportional to periodic time
Inversely proportional to periodic time
Inversely proportional to its angular velocity
Directly proportional to its angular velocity
Equation of dynamics
Equation of dynamic equilibrium
Equation of statics
None of these
229.34 cm4
329.34 cm4
429.34 cm4
529.34 cm4
60 N
80 N
100 N
120 N
If a polygon representing the forces acting at point in a body is closed, the forces are in equilibrium
If forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order, then the resultant of the forces will be represented in magnitude and direction by the closing side of the polygon
If forces acting on a point can be represented of a polygon taken in order, their sides of a polygon taken in order, their resultant will be represented in magnitude and direction by the closing side of the polygon, taken in opposite order
If forces acting on a point can be represented in magnitude and direction by the sides of a polygon in order, the forces are in equilibrium
π √(l/g)
π √(2l/g)
π √(g/2l)
π √(l/2g)
0.25 cm
0.50 cm
0.75 cm
1.00 cm
At the centre of gravity of the body
On the periphery of the body
On any point on the line of action of the force
At any point on the surface normal to the line of action of the force
Isolated joint with only body forces acting on it
Isolated joint with internal forces acting on it
Isolated joint with all the forces, internal as well as external, acting on it
None of the above
Zero
0.5
1.0
Between 0 and 1
0.1 rad/sec
1 rad/sec
10 rad/sec
100 rad/sec
Coplanar non-concurrent forces
Non-coplanar concurrent forces
Non-coplanar non-current forces
Intersecting forces
kg/m
kg/m2
m4
m3
2π √(α/θ)
(1/2π) √(α/θ)
4π √(α/θ)
2π √(α - θ)
Dip of the cable increases
Length of the cable increases
Dip of the cable decreases
None of these
Its longer side
Its shorter side
The diagonal of the parallelogram which does not pass through the point of intersection of the forces
The diagonal of the parallelogram which passes through the point of intersection of the forces
Simple pendulum
Compound pendulum
Second's pendulum
None of these
Power
Impulse
Work
Momentum
8.04 km/sec at a height of 285 km
11.11 km/sec at a height of 37,400 km
11.26 km/sec, the satellite escapes the pull of the earth
All the above
¾ l
½ l
l/√2
2/√3 l
Everybody continues in its state of rest or of uniform motion in a straight line, unless it is acted upon by some external force
The rate of change of momentum is directly proportional to the impressed force, and takes place in the same direction, in which the force acts
To every action, there is always an equal and opposite reaction
All the above
1 sec
2 sec
3 sec
4 sec
kg.m/sec
kg.m/sec
kg.m/sec2
kg.m/sec