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

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

## Applied Mechanics and Graphic Statics The condition of equilibrium for any system of forces in a plane is

That polygon of forces must close
That resultant couple must be zero
Both (A) and (B)
None of these

5.25 cm
4.5 cm
5.5 cm
5.0 cm

0.4 R
0.3 R
0.2 R
0.6 R

## Applied Mechanics and Graphic Statics If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then i. a force is required to move the body upwards ii. a force is required to move the body downward iii. the body will not be in equilibrium The correct answer is

only (ii)
only (i)
both (i) and (iii)
both (i) and (ii)

## Applied Mechanics and Graphic Statics A quantity whose dimensions are M2L2T3 could be the product of

force and pressure
mass and power
force and velocity
energy and velocity