Question

A beam is subjected to bending moment M. What is the relationship between shear force F and bending moment M?

• A. $$M = \frac {d^2F}{dx^2}$$
• B. $$M = \frac {dF}{dx}$$
• C. $$F = \frac {d^2M}{dx^2}$$
• D. $$F = \frac {dM}{dx}$$

Answer 1

Answer:

$$F = \frac {dM}{dx}$$

The rate of change of bending moment at any section is equal to shear force at that section. i.e., $F = \frac {dM}{dx}$