Problem 2: The force of magnitude 20-lb is directed from point B to point A, along cable BA. This ensures that the door is held partially open, raising it by an angle of 20 degrees from the xy plane. Carefully looking at the figure, notice that the distance from O to B is 3 ft. For reference, when you find the coordinates of point B, this height of 3 ft will be the hypotenuse. a. Write down the coordinates of points A, B, C and O. b. Express the force along the cable BA as a Cartesian vector. c. Determine the projection of the force along the line joining points O and B. Express this as a Cartesian vector.

Problem 2: The force of magnitude 20-lb is directed from point B to point A, along cable BA. This ensures that the door is held partially open, raising it by an angle of 20 degrees from the xy plane. Carefully looking at the figure, notice that the distance from O to B is 3 ft. For reference, when you find the coordinates of point B, this height of 3 ft will be the hypotenuse. a. Write down the coordinates of points A, B, C and O. b. Express the force along the cable BA as a Cartesian vector. c. Determine the projection of the force along the line joining points O and B. Express this as a Cartesian vector.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter2: Basic Operations With Force Systems

Section: Chapter Questions

Problem 2.80P: The figure shows one-half of a universal coupling known as the Hooke's joint. The coupling is acted...

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