{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture 6-13

# Lecture 6-13 - Systems Moments SignConvention...

This preview shows pages 1–14. Sign up to view the full content.

Systems of Forces and Moments Moments – rotation at a point due to a force applied at some distance Sign Convention Clockwise = negative Counterclockwise = positive M P = DF

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
In terms of components… F x y y x P F D F D M + = y F x D y If line of action goes through P… D x then M P = 0
Problem 4.24 – The tension in the cable is the same on both sides of the pulley. The sum of the moments about point A due to the 800 lb force and the forces exerted on the bar by the cable at B and C is zero. What is the tension in the cable?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
The weights W 1 and W 2 are suspended by the cable system shown. The cable BC is horizontal. If the largest moment that can be resisted by the pole DP at point P is 100 lb ft, determine W 1 .