A number of forces acting at a point will be in equilibrium if
A. Their total sum is zero
B. Two resolved parts in two directions at right angles are equal
C. Sum of resolved parts in any two perpendicular directions are both zero
D. All of them are inclined equally
Answer: Option C
This Question Belongs to Civil Engineering >> Strength Of Materials
Join The Discussion
Comments ( 2 )
The weight of a body is due to
A. Centripetal force of earth
B. Gravitational pull exerted by the earth
C. Force of attraction experienced by par-ticles
D. Gravitational force of attraction towards the centre of the earth
The product of either force of couple with the arm of the couple is called
A. Resultant couple
B. Moment of the forces
C. Resulting couple
D. Moment of the couple
A. Density of metal can’t be determined
B. Metal is twice as dense as water
C. Metal will float in water
D. Metal is twice as dense as unknown fluid
Coulomb friction is the friction between
A. Bodies having relative motion
B. Two dry surfaces
C. Two lubricated surfaces
D. Solids and liquids
Option a is correct.
Why not opition a??