Review: Mini-Quiz Vector Addition
1. Find the magnitude of
the resultant vector.
𝑎2 + 𝑏 2 = 𝑐 2
𝑎 = 3 𝑎𝑛𝑑 𝑏 =4
𝑐 2 = 32 + 42
𝑐 2 = 9 + 16
𝑐 2 = 25
𝑐 = 25
𝑐=5
Class Greeting
Adding Vectors Geometrically
(Polygon Method)

 Draw the first vector A with
the appropriate length and in
the direction specified, with
respect to a coordinate system.

 Draw the next vector B with the
appropriate length and in the
direction specified, with respect
to the same coordinate system
 Draw a parallelogram
 The resultant is drawn as a
diagonal from the origin
 
A B

B

A
Resultant
Vector
Vector
1. Redraw the graph using the
Polygon Method.
2. Find the magnitude of the
resultant vector to the
nearest hundredth.
𝑎2 + 𝑏 2 = 𝑐 2
𝑎 = 4 𝑎𝑛𝑑 𝑏 = 3
𝑐 2 = 42 + 32
𝑐 2 = 25
𝑐 = 25
𝑐=5
Objective: The student will be able to solve
Mathematical Problems related to Physics.
Math
Physics
Deep as the relationship is
between mathematics and
physics, it would be wrong,
however, to think that the two
disciplines overlap that much.
They do not: They have their
separate aims and tastes.
They have distinctly different
value judgements, and they
have different traditions. At
the fundamental conceptual
level they amazingly share
some concepts, but even there,
the life force of each discipline
runs along its own veins.
Lesson Summary:
Objective: The student will be able to solve
Mathematical Problems related to Physics.
Preview of the Next Lesson:
Objective: The student will be able to
find simple interest by using the simple
interest formula and find the principal, rate
or time using the simple interest formula.
Homework
Mathematical Skills and Processes - HW 9