# Numbers | Maths with Lemon

Source: https://mathswithlemon.io/aa-geometry-trigonometry-vector%20kinematics.html


## Vectors and kinematics

"It is seen that both matter and radiation possess a remarkable duality of character, as they sometimes exhibit the properties of waves, at other times those of particles. Now, it is obvious that a thing cannot be a form of wave motion and composed of particles at the same time - the two concepts are too different. "


#### Distance and Displacement


##### What you have to know:

- You must be able to add, multiply and find the magnitude of a vector. (If not, check this lesson)
- You must know the vector form of a line. (If not, check this lesson)

##### Key Points

- 1. Watch the video:

#### Speed and Velocity


##### What you have to know:

- The Pythagorean Theorem.

##### Key Points

- 1. Watch the video:
- 2. Solving equations with \(\cos x\). Watch the video .

#### Speed and Unit Vectors


##### What you have to know:

- The Pythagorean Theorem.

##### Key Points

- 1. Watch the video:

#### Vector kinematics formulae


##### What you have to know:

- The Pythagorean Theorem.

##### Key Points

- 1. Watch the video:
- 2. Watch this solved example 1 .
- 3. Watch this solved example 2 .

### IB Past Paper Problems

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