College Pre-Calc
Section 9.1: Solving Right Triangles &
Section 5.1: Linear & Angular Velocity (CT)
Angle of Elevation:
Angle of Depression:
College Textbook - "Chapter 5"
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College Pre-Calc
Section 9.1: Solving Right Triangles & Section 5.1: Linear & Angular Velocity (CT)
Example: Given ΔABC.
C = 90o, c = 29, and b = 21.
Solve the triangle.
Use only information that is given to
you in case you messed up on one of
the answers you found...
College Textbook - "Chapter 5"
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College Pre-Calc
Different textbooks write it in different ways, but still mean the
same thing...
College Textbook - "Chapter 5"
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College Pre-Calc
Section 9.1: Solving Right Triangles & Section 5.1: Linear & Angular Velocity (CT)
Angular Velocity: Angle swept by a line segment drawn
from the center of a circle to a point on the circumference
of the circle
In other words...
find θ (in radians/unit of time)
Linear Velocity: Distance a point travels in one unit of time
In other words...
find arc length (s=rθ)
College Textbook - "Chapter 5"
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College Pre-Calc
Section 9.1: Solving Right Triangles & Section 5.1: Linear & Angular Velocity (CT)
Example: A wheel of radius
40 cm is rotating at 1200 rpm
(revolutions per minute).
Determine:
a)
the angular velocity of the wheel in radians per second
b)
the linear velocity in meters per second of a point on
the circumference of the wheel
College Textbook - "Chapter 5"
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College Pre-Calc
College Textbook - "Chapter 5"
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