P/Q
P - Q
P + Q
Q/P

mass scale
distance scale
force scale
time scale

## Applied Mechanics and Graphic Statics If the resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’ makes an angle ‘α’ with ‘P’, then tan α equals

P sin θ/P + Q tan θ
Q sin θ/P + Q cos θ
P sin θ/P - Q cos θ
Q sin θ/P + Q sin θ

## Applied Mechanics and Graphic Statics Varingon’s theorem of moment’s states

Arithmetical sum of the moments of the forces about any point in their plane, is equal to the moment of their resultant about that point
Algebraic sum of the moments of two forces about any point, is equal to the moment of their resultant about that point
Algebraic sum of the moments of the forces about any point in their plane, is equal to the moment of their resultant about that point
Arithmetical sum of the moments of two forces about any point, is equal to the moments of their resultant about that point

## Applied Mechanics and Graphic Statics A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is (i) 5000 Nm (ii) 5000 kg.m (iii) 5000 J

Both (i) and (iii)
Both (ii) and (iii)
Only (ii)
All (i), (ii) and (iii)

## Applied Mechanics and Graphic Statics Free body diagram is an

Isolated joint with only body forces acting on it
Isolated joint with all the forces, internal as well as external, acting on it
Isolated joint with internal forces acting on it
None of these