Question

which of the following best describes a body in equilibrium?
a. it is standing upright.
b. all forces acting on a body are balanced.
c. the force of gravity has been overcome.
d. no forces are acting on the body.
please select the best answer from the choices provided.
a
b
c
d

Explanation:

• Option A: Standing upright does not necessarily mean the body is in equilibrium. There could be unbalanced forces acting on it.
• Option B: According to the definition of equilibrium in physics, when all forces acting on a body are balanced (\(\sum F = 0\)), the body is in equilibrium.
• Option C: Gravity is a fundamental force. Saying it has been overcome is not a correct description of equilibrium. Equilibrium is about force balance, not "overcoming" a particular force.
• Option D: In reality, there are always forces like gravity acting on a body (in most common scenarios). A body with no forces acting on it is an idealized and non - existent case in normal situations.

Answer:

B. All forces acting on a body are balanced.