Strength of Materials
Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction

horizontally
at an angle equal to the angle of friction to the inclined plane
along the plane
vertically

ANSWER DOWNLOAD EXAMIANS APP

Strength of Materials
According to Lami's theorem

Three forces acting at a point will be in equilibrium
Three forces acting at a point can be represented by a triangle, each side being proportional to force
If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium
If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

ANSWER DOWNLOAD EXAMIANS APP