If sum of torques acting on the body are equal to zero, the body is said to be in state of . . . . . .
a) equilibrium
b) rest
c) motion
d) non
For complete equilibrium . . . . . . condition/s must be satisfied.
a) first
b) second
c) both a & b
Second condition of equilibrium can also be stated as the principle of . . . . . .
a) equilibrium
b) moment
c) torque
d) force
There are . . . . . type/s of equilibrium.
a) one
b) two
c) three
d) four
Explanation: static and dynamic equilibrium.
When a body is at rest under the action of several forces acting together and several torques acting the body is said to be in . . . . . . equilibrium.
a) dynamic
b) static
c) both a & b
d) none of these
A book resting on table is in . . . . . . equilibrium.
a) static
b) dynamic
c) dynamic rotational
d) none of these
