gv²/Gr
Gr²/gr
Gr²/gv²
Gv²/gv
D. Gv²/gv
Medians of the triangle meet
Perpendicular bisectors of the sides of the triangle meet
Bisectors of the angle of the triangle meet
None of these
7.5 cm
5.0 cm
8.75 cm
7.85 cm
23 t
32 t
4 t
3 t
1 sec and 99.4 cm
1 sec and 92.7 cm
2 sec and 99.4 cm
2 sec and 92.7 cm
To be zero
To be maximum
To be minimum
None of these
Moon
Earth
Sun
Pole
sin θ
cos θ
tan θ
cosec θ
2 sec
3 sec
4 sec
5 sec
103 dynes
104 dynes
105 dynes
106 dynes
Circle
Equilateral triangle
Rectangle
Right angled triangle
Only (i)
Both (i) and (ii)
Both (i) and (iii)
All (i), (ii) and (iii)
48 kg
60 kg
72 kg
None of these
9.3 m/sec
8.3 m/sec
7.3 m/sec
6.3 m/sec
cm4
kg.cm²
gm.cm²
gm.cm3
200 tonnes at the centre
500 tonnes at the centre
200 tonnes at the right support
200 tonnes at the left support
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
1
2
3
4
Trusses only
Beam only
Rigid frames only
Any type of structure
Coplanar non-concurrent forces
Non-coplanar concurrent forces
Non-coplanar non-current forces
Intersecting forces
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
Is directly proportional to their velocity of approach
Is inversely proportional to their velocity of approach
Bears a constant ratio to their velocity of approach
Is equal to the sum of their velocities of approach
Proportional to A
Proportional to A²
Proportional to 1/A²
Independent of A
sin θ/(1 + sin θ)
(1 - sin θ)/sin θ
(1 + sin θ)/(1 - sin θ)
(1 - sin θ)/(1 + sin θ)
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
The body centrode rolls on the space centrode
The space centrode rolls on the body centrode
Both body and space centrodes may role on each other
The body centrode never touches space centrode
Power
Impulse
Work
Momentum
Always directed away from the centre, the point of reference
Proportional to the square of the distance from the point of reference
Proportional to the distance from the point of reference and directed towards it
Inversely proportion to the distance from the point of reference
Less than 1
Equal to 1
Between 1 and 2
Greater than 2
Gravitational force
Centrifugal force
Centripetal force
None of these
1 sec
2 sec
3 sec
4 sec