# resultant couple

## Problem 268 | Resultant of Non-Concurrent Force System

**Problem 268**

The resultant of four forces, of which three are shown in Fig. P-268, is a couple of 480 lb·ft clockwise in sense. If each square is 1 ft on a side, determine the fourth force completely.

## 251 Two forces producing a couple and a force

**Problem 251**

A vertical force P at A and another vertical force F at B in Fig. P-251 produce a resultant of 100 lb down at D and a counterclockwise couple C of 200 lb·ft. Find the magnitude and direction of forces P and F.

## 247 - Resultant of couples in a 3-step pulley

**Problem 247**

The three-step pulley shown in Fig. P-247 is subjected to the given couples. Compute the value of the resultant couple. Also determine the forces acting at the rim of the middle pulley that are required to balance the given system.