Podcast
Questions and Answers
In Problem 7, what is the direction of the resultant force at point A?
In Problem 7, what is the direction of the resultant force at point A?
- Along the line OA (correct)
- Along the line AC
- Perpendicular to the line OA
- Along the line AB
In Problem 8, what is the direction of the moment produced by the force acting at point B?
In Problem 8, what is the direction of the moment produced by the force acting at point B?
- Parallel to the boom
- Perpendicular to the boom
- Counter-clockwise
- Clockwise (correct)
In Problem 9, what is the sign convention typically used for moments calculated about a point?
In Problem 9, what is the sign convention typically used for moments calculated about a point?
- Counter-clockwise moments are positive, clockwise moments are negative (correct)
- Moments are always positive
- Moments are always negative
- Clockwise moments are positive, counter-clockwise moments are negative
Which of these forces in Problems 7, 8, and 9 are not represented as a point load?
Which of these forces in Problems 7, 8, and 9 are not represented as a point load?
In Problem 7, which of these could be a key assumption used to solve for the tension in cable AC?
In Problem 7, which of these could be a key assumption used to solve for the tension in cable AC?
Flashcards
Tension in cable AB
Tension in cable AB
The force exerted in cable AB, given as 253 lb.
Tension in cable AC
Tension in cable AC
The unknown force in cable AC that needs determination.
Load P
Load P
The resultant load that the boom OA carries, sought after in calculations.
Force-couple system
Force-couple system
Signup and view all the flashcards
Resultant moment
Resultant moment
Signup and view all the flashcards
Study Notes
Problem 7
- A boom (OA) carries a load (P) and is supported by two cables (AB and AC).
- Tension in cable AB is 253 lb.
- The resultant of load P and forces at A is directed along OA.
- Find the tension in cable AC.
- Find the magnitude of load P.
Problem 8
- Three forces act on a bent bar.
- Forces are at points A, B, and C.
- Determine a force-couple system at support point A.
- Forces are:
- 2500 lb at B
- 800 lb at C
- 1200 lb at D
Problem 9
- Determine the resultant moment produced by the forces around point O.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
