tanθ = ΣH/ΣV
tanθ = ΣV/ΣH
tanθ = ΣV × ΣH
tanθ = √(ΣV + ΣH)
B. tanθ = ΣV/ΣH
The algebraic sum of the forces, constituting the couple is zero
The algebraic sum of the forces, constituting the couple, about any point is the same
A couple cannot be balanced by a single force but can be balanced only by a couple of opposite sense
All of the above
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
Angle of friction
Angle of repose
Angle of projection
None of these
Reversible machine
Non-reversible machine
Neither reversible nor non-reversible machine
Ideal machine
P/sin β = Q/sin α = R/sin
P/sin α = Q/sin β = R/sin
P/sin = Q/sin α = R/sin β
P/sin α = Q/sin = R/sin β
ω.√(y² - r²)
ω.√(r² - y²)
ω².√(y² - r²)
ω².√(r² - y²)
Angle of friction
Angle of repose
Angle of banking
None of these
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
None of the above
Elastic
Inelastic
Solid
None of these
Equal to
Less than
Greater than
None of these
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
m₁. m₂. g/(m₁ + m₂)
2m₁. m₂. g/(m₁ + m₂)
(m₁ + m₂)/ m₁. m₂. g
(m₁ + m₂)/2m₁. m₂. g
1/m
V.R./m
m/V.R.
1/(m × V.R.)
Angstrom
Light year
Micron
Milestone
The same as centre of gravity
The point of suspension
The point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
None of the above
Area of the triangle
Twice the area of the triangle
Half the area of the triangle
None of these
The centre of heavy portion
The bottom surface
The midpoint of its axis
All of the above
Density of metal can't be determined
Metal is twice as dense as water
Metal will float in water
Metal is twice as dense as unknown fluid
Energy
Mass
Momentum
Angle
Limiting friction
Sliding friction
Rolling friction
Kinematic friction
Same
More
Less
May be less of more depending on nature of surfaces and velocity
Less than
Equal to
More than
None of these
Translatory
Rotary
Circular
Translatory as well as rotary
Zero
Minimum
Maximum
None of these
a4/4
a4/8
a4/12
a4/36
Friction
Limiting friction
Repose
Kinematic friction
Newton
Pascal
Watt
Joule
0° and 180°
180° and 0°
90° and 180°
90° and 0°
3mr2/5
3mr2/10
2mr2/5
4mr2/5
Equal to
Less than
Greater than
Either (B) or (C)