Rotates
Moves with variable velocity in a straight line
Moves along a curved path
Does not move at all
D. Does not move at all
Sliding friction
Rolling friction
Limiting friction
None of these
π √(l/g)
π √(2l/g)
π √(g/2l)
π √(l/2g)
h/3
h/4
2h/3
3h/4
Trusses only
Beam only
Rigid frames only
Any type of structure
1/4
1/3
1/2
1/5
Directly proportional to its angular velocity
Directly proportional to the square of its angular velocity
Inversely proportional to the square of its angular velocity
Inversely proportional to its angular velocity
70 m/sec
75 m/sec
80 m/sec
90 m/sec
Force-displacement diagram
Force-time diagram
Velocity-time diagram
Velocity-displacement diagram
Only (ii)
Both (i) and (iii)
Both (ii) and (iii)
All (i), (ii) and (iii)
Original velocity in the same direction
Half the original velocity in the same direction
Half the original velocity in the opposite direction
Original velocity in the opposite direction
1 sec and 99.4 cm
1 sec and 92.7 cm
2 sec and 99.4 cm
2 sec and 92.7 cm
f
1/f
1/f²
f²
Downwards at its upper end
Upwards at its upper end
Perpendicular to the wall at its upper end
Zero at its upper end
400 watts
500 watts
4000 watts
None of these
Can raise the CG of the body but cannot lower it
Tends to lower the CG of the body
Neither raises nor lowers the CG of the body
None of above
Dyne
Newton
Joule
Erg
30°
45°
60°
None of these
20 m/sec
30 m/sec
40 m/sec
50 m/sec
Is more when the lift is moving downwards
Is less when the lift is moving upwards
Remains constant whether its moves downwards or upwards
Is less when the lift is moving downwards
One specified point
Two specified points
Three specified points
More than three specified points
2 t
5.8 t
0.2 t
3.5 t
Coplanar non-concurrent forces
Non-coplanar concurrent forces
Non-coplanar non-current forces
Intersecting forces
Nature plays an important role in the launch of a satellite
The earth's gravity reduces the speed of a satellite by 32 km per second
The gravitational force relents as the satellite climbs higher
All the above
Three forces acting at a point, can be rep-resented by the sides of a triangle, each side being in proportion to the force
Three forces acting along the sides of a triangle are always in equilibrium
If three forces acting on a, point can be represented in magnitude and direction, by the sides of a triangle taken in order, these will be in equilibrium
If the forces acting on a particle be represented in magnitude and direction by the two sides of a triangle taken in order, their resultant will be represented in magnitude and direction by the third side of the triangle, taken in opposite order
Can be obtained by graphic statics
Cannot be obtained by graphic statics
May be obtained by graphic statics
Can be obtained by graphic statics by trial and error
103 dynes
104 dynes
105 dynes
106 dynes
Algebraic sum of horizontal components of all the forces must be zero
Algebraic sum of vertical components of all the forces must be zero
Algebraic sum of the moments of the forces about a point must be zero
All (a), (b) and (c)
The extreme point of the oscillation
Through the mean position
Through a point at half amplitude
None of these
30°
45°
60°
75°
To be zero
To be maximum
To be minimum
None of these