h [(2a + b)/(a + b)]
(h/2) [(2a + b)/(a + b)]
(h/3) [(2a + b)/(a + b)]
(h/3) [(a + b)/(2a + b)]
C. (h/3) [(2a + b)/(a + b)]
Force
Work
Power
Velocity
One point
One plane
Different planes
Perpendicular planes
Limiting friction
Sliding friction
Rolling friction
Kinematic friction
2π. √(gh/kG² + h²)
2π. √(kG² + h²/gh)
1/2π. √(gh/kG² + h²)
1/2π. √(kG² + h²/gh)
Potential energy
Kinetic energy
Electrical energy
Chemical energy
kcal
kg-m
kW-hr
h.p
In the shaded area
In the hole
At O
None of these
2.√(gh)
√(gh)
√(2gh)
2g.√h
Newton's first law of motion
Newton's second law of motion
Newton's third law of motion
None of these
Balance each other
Produce a couple and an unbalanced force
Are equivalent
Cannot balance each other
Their algebraic sum is zero
Their lines of action are at equal distances
The algebraic sum of their moments about any point in their plane is zero
The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point.
Straight line
Parabola
Hyperbola
Elliptical
[√(4p² - q²)]/6
(4p² - q²)/6
(p² - q²)/4
(p² + q²)/4
2.5 cm
3.0 cm
4.0 cm
5.0 cm
The three forces must be equal
The three forces must be at 120° to each other
The three forces must be in equilibrium
If the three forces acting at a point are in equilibrium, then each force is proportional to the sine of the angle between the other two
v
v/2
v/4
v/8
r/2
r/A
r/3
0.134 r
h/2
J/3
h/6
h/4
Their algebraic sum is zero
Their lines of action are at equal distances
The algebraic sum of their moments about any point in their plane is zero
The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point.
Coplanar concurrent forces
Coplanar non-concurrent forces
Non-coplanar concurrent forces
Non-coplanar non-concurrent forces
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
T.ω (in watts)
T.ω/60 (in watts)
T.ω/75 (in kilowatts)
T.ω/4500 (in kilowatts)
Coplanar concurrent forces
Coplanar non-concurrent forces
Like parallel forces
Unlike parallel forces
The tangent of the angle of friction is equal to coefficient of friction
The angle of repose is equal to angle of friction
The tangent of the angle of repose is equal to coefficient of friction
The sine of the angle of repose is equal to coefficient to friction
ω/2π
2π/ω
2π × ω
π/ω
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
Do not meet at one point but their lines of action lie on the same plane
None of the above
Reversible machine
Non-reversible machine
Neither reversible nor non-reversible machine
Ideal machine
Arm of man
Pair of scissors
Pair of clinical tongs
All of the above
Equal to
Less than
Greater than
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