Question

Body forces are _________

(a) external forces at boundaries of body

(b) internal forces at boundaries of body

(c) forces only on one side in internal of the body

(d) forces distributed throughout the volume of the body

I have been asked this question during an online exam.

My query is from Elasticity topic in division Elements of Elasticity of Geotechnical Engineering I

Answer 1

The correct answer is (d) forces distributed throughout the volume of the body

To explain I would say: The forces distributed throughout the volume of the body are called body forces. Such forces are gravitational forces, inertia forces, magnetic forces and seepage forces, etc.