3.1 Two Dimensions in Motion and Vectors Chapter 3

Chapter 3 Define vocabulary for tomorrow (Pg 107 has the list)

SCALAR VS VECTOR magnitude magnitude and direction Speed velocity Distance displacement acceleration Mass weight force

Resultant A vector that represents the sum of two or more vectors Look at figure 4 on page 84 How can I get to the cafeteria from here? The resultant is the same no matter what way you go.

Rules for Vectors Vectors can be moved parallel to themselves in a diagram. 2. Vectors can be added in any order. To subtract a vector add its opposite. Multiplying or dividing vectors by scalars results in vectors

Remember Vectors in the same direction are added Vectors in opposite direction are subtracted Vectors at an angle use Pythagorean’s theorem and tangent of the angle Practice: Introduction to Vectors