Test 1, Ch. 1-2 Flashcards Preview

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Flashcards in Test 1, Ch. 1-2 Deck (8):
1

Finding a resultant force

1. resolve each force into cartesian vector form(x and y components)
2. respective components are added using scalar algebra
3. Find the magnitude and direction of the resultant vector

2

theta=

cos^-1(Fx/Fr)

3

Beta

cos^-1(Fy/Fr)

4

Gamma

cos^-1(Fz/Fr)

5

How to find the direction angles if two arbitrary angles are given

A'=Asin(thi)
Az=Acos(thi)
Ax=A'cos(theta)
Ay=A'sin(theta)

6

Position Vector

a fixed vector which locates a point in space relative to another point

7

Cosine law

R=root(A^2+B^2-2ABcos(theta)

8

Sin law

Sin(alpha)/A=sin(beta)/B=sin(theta)/R
See diagram in notes