Question

State the conditions for equilibrium. Under which condition(s) is a body not static but still in equilibrium?

Answer 1

here,

For a body to be in equilibrium

the net force on the body must be ZERO

the net torque on the body must be ZERO

when a body is moving at constant velocity

the body is not static , but it can be in equilibrium

when (the net force on the body must be ZERO

the net torque on the body must be ZERO
)

Answer 2

ANSWER :

Conditions for equilibrium :

∑H = sum of horizontal components of forces = 0

∑V = sum of vertical of components of forces = 0

∑M = sum of moments = 0

When the body is in motion it is under action of net force it is not static. However it can be in dynamic equilibrium when it keeps moving and does not fall.