2. Physical Vectors Flashcards
1
Q
What is the direction of the vector?
A
From its tail to its head.
2
Q
Two vectors are the same if they have…
A
The same magnitude and direction. This means if we take move the vector (without rotating it), then the vector that we got is the same vector in the beginning.
3
Q
What is the special symbol for vectors
A
4
Q
We can make vectors bigger and change their magnitude. In order to this we must…
A
multiply by what is called a scalar. These have only magnitude and no direction.
So really scalar is just a number
5
Q
Scalars and vectors cannot be…
A
ADDED TOGETHER
6
Q
Can we add vectors together?
A
YES
7
Q
Name the parts of the vector
A
8
Q
What are the steps with adding by components.
A
- Use trig to find X and Y pieces of both A→ and B→
- Add the x and y pieces.
- Draw the new x and y pieces.
- Use Pythag to find the magnitude of resultant.
- Use inverse trigonometry to find angle of resultant.
9
Q
Solve
A
10
Q
Solve
A
