INTRO TO VECTORS

PHYSICAL QUANTITIES

SCALAR

• A physical quantity
• Has magnitude
• But no direction
• Italicized symbols

VECTOR

• A physical quantity
• Has both:
• Magnitude & direction
• Bold faced symbols

RESULTANT VECTOR

A vector that represents the sum of two or more vectors.

GRAPHIC METHOD OF VECTOR ADDITION

PROPERTIES OF VECTORS

• Can be move parallel to themselves
• Can be added in any order
• To subtract a vector, add its opposite
• ✖️ing or ➗ing vectors by scalars results in vectors