Vectors Flashcards
1
Q
what direction is sin?
A
vertical
2
Q
what direction is cos?
A
horizontal
3
Q
if we always have the angle between the vector and the x axis sin is always?
A
vertical
4
Q
how do you find cos and sin for horizonal and vertical using the N value and angle?
A
horizontal: NcosAngle vertical: NsinAngle
5
Q
how do you find N and the angle?
A
R= square root vertical^2+horizontal^2= N
angle= tan-1 (vertical over hoizontal)=angle
6
Q
if you have multiple vectors how do you find the horizontal and vertical values to find N and the angle?
A
add the values from the NcosAngle and NsinAngle together
7
Q
what does RH stands for?
A
Resultant horizontal force
8
Q
what does RV stands for?
A
Result Vertical force
