Lecture4-Force along a line

Lecture4-Force along a line - APPLICATIONS (continued)...

Info iconThis preview shows pages 1–5. Sign up to view the full content.

View Full Document Right Arrow Icon
1 APPLICATIONS (continued) Given the forces in the cables, how will you determine the resultant force acting at D, the top of the tower? What are the coordinates of points A, B, and C?
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 r AB r AB 1. P and Q are two points in a 3-D space. How are the position vectors r PQ and r QP related? A) r PQ = r QP B) r PQ = - r QP C) r PQ = 1/ r QP D) r PQ = 2 r QP 2. Two points in 3 – D space have coordinates of P (1, 2, 3) and Q (4, 5, 6) meters. The position vector r QP is given by A) {3 i + 3 j + 3 k } m B) {- 3 i – 3 j – 3 k } m C) {5 i + 7 j + 9 k } m D) {- 3 i + 3 j + 3 k } m E) {4 i + 5 j + 6 k } m
Background image of page 2
3 Example 2-12 Determine the magnitude and coordinate direction angles of the position vector directed from A toward B.
Background image of page 3

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

View Full DocumentRight Arrow Icon
4 4. If F and r are force vector and position vectors, respectively, in SI units, what are the units of the expression ( r × ( F / F )) ? A) Newton B) Dimensionless C) Meter D) Newton - Meter E) The expression is algebraically illegal. 3. Force vector,
Background image of page 4
Image of page 5
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Lecture4-Force along a line - APPLICATIONS (continued)...

This preview shows document pages 1 - 5. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online