26) A number of forces acting at a point will be in equilibrium if
Answer is:
sum of resolved parts in any two per-pendicular directions are both zero
Related Structural Engineering III MCQ with Answers
Answer is:
constitute a couple
Explanation:
The two equal and opposite forces, whose lines of action are different, form a couple.
A little consideration will show, that a couple does not produce any translatory motion (i.e. motion in a straight line), but a couple produces a motion of rotation of the body on which it acts.
Answer is:
if a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero
Answer is:
mass
Explanation:
A scalar quantity is defined as the physical quantity that has only magnitude, for example, mass, energy and electric charge.
On the other hand, a vector quantity is defined as the physical quantity that has both magnitude as well as direction like force, weight, acceleration and velocity.
Answer is: