Engineering Mechanics
The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is

D/(d₁ - d₂)
2D/(d₁ + d₂)
D/(d₁ + d₂)
2D/(d₁ - d₂)

ANSWER DOWNLOAD EXAMIANS APP

Engineering Mechanics
Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then

Their lines of action are at equal distances
Their algebraic sum is zero
The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point
The algebraic sum of their moments about any point in their plane is zero

ANSWER DOWNLOAD EXAMIANS APP