We start the new chapter on vectors.
While a scalor is a quantity that has only magnitude, a vector is a quantity that has both magnitude and direction. We usually use directed line segment to represent a vector. The direction of the line segment, indicated by an arrow, represents the direction of the vector, and the length of the line segment represents the magnitude of the vector.
Two vectors are equal if they have equal magnitude and are in the same direction.
For vector additions, we study the triangle law and parallelogram law of vector additions.
Homework:
Page 1, Page 2, Page 3, Page 4
Workbook P 31, #1, #2, #3, #4, #5, #12, #15.
Answers to last week’s homework: Answers
