# cord

## Problem 516 | Friction

**Problem 516**

Referring to Fig. P-515 if the coefficient of friction is 0.60 and θ = 30°, what force P applied to B acting down and parallel to the incline will start motion? What is the tension in the cord attached to A?

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## Problem 319 | Equilibrium of Concurrent Force System

**Problem 319**

Cords are loop around a small spacer separating two cylinders each weighing 400 lb and pass, as shown in Fig. P-319 over a frictionless pulleys to weights of 200 lb and 400 lb . Determine the angle θ and the normal pressure N between the cylinders and the smooth horizontal surface.

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## Problem 317 | Equilibrium of Concurrent Force System

**Problem 317**

The system of knotted cords shown in Fig. P-317 support the indicated weights. Compute the tensile force in each cord.

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