# shear equation

## Solution to Problem 422 | Shear and Moment Equations

## Solution to Problem 421 | Shear and Moment Equations

**Problem 421**

Write the shear and moment equations as functions of the angle θ for the built-in arch shown in Fig. P-421.

## Shear and Moment Diagrams

**Shear and Moment Diagrams**

Consider a simple beam shown of length L that carries a uniform load of w (N/m) throughout its length and is held in equilibrium by reactions R_{1} and R_{2}. Assume that the beam is cut at point C a distance of x from he left support and the portion of the beam to the right of C be removed. The portion removed must then be replaced by vertical shearing force V together with a couple M to hold the left portion of the bar in equilibrium under the action of R_{1} and wx.