고체역학 crandall : statics-ch2-수정

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crandall 책 정리crandall 책 정리

목차

1. Vectors and Resultant
2. Addition of Vectors
3. Rectangular Components of Force
4. Equilibrium of Forces
5. Forces in Space (3-Dimensional)
6. Homework Problems

본문내용

Soulution
The x and y components of each force are determined by trigonometry as shown and are entered in the table below. According to the convention adopted in Sec. 2.7, the scalar number representing a force component is positive if the force component has the same sense as the corresponding coordinate axis. Thus, x components acting to the right and y components acting upward are represented by positive numbers.

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