Lesson+13+&+14

**﻿Advancememt in Physics @ Dwight Englewood** **Director: Elise Burns** **TA: Sebastian Luhol**

Vector's and Direction
The study of motion involves a variety of quantities like: distance, displacement, speed, velocity, acceleration, force, and mass. Vector quantities are shown by vector diagrams. Vector diagrams show a vector by using an arrow drawn to scale in a certain direction.

Vectors point in the same directions as a compass, North, South, East, and West. They also point northeast or southwest when at an angle. The direction of a vector is counter clockwise with its tail at due east, so an angle at 30 degrees has been rotated 30 degrees counter //clockwise// relative to due east.

Magnitude of a Vector
The magnitude of a vector

Lesson 15 & 16 Uniform circular motion constant speed but changing direction No kinematics equations

centripetal Acceleration Ac= v2\r

Changing velocity = changing velocity & hanging direction