Brian McLogan
How To Graph a Radian in Terms of pi
👉 Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Master evaluating trigonometric function using even odd identities
Master evaluating trigonometric function using even odd identities
Brian McLogan
Half angle of Cosine given an angle in radians
👉 Learn how to evaluate the Sine of an angle using the half-angle formula. The half-angle formula for Sine is helpful when you need to determine the exact value of function given an angle but cannot use a calculator or the angle is not...
Brian McLogan
What is a central angle?
👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...
Virtually Passed
Relative acceleration of rigid links summary
Relative acceleration of rigid links summary
Flipping Physics
Simple Harmonic Motion - Position Equation Derivation
Deriving the position equation for an object in simple harmonic motion.
Brian McLogan
What is the measure of one radian
👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...
Flipping Physics
Introductory Angular Velocity Problem - A Turning Bike Tire
The wheel of a bike rotates exactly 3 times in 12.2 seconds. What is the average angular velocity of the wheel in (a) radians per second and (b) revolutions per minute?
Curated Video
Trig Ratios on the X and Y-Axes: Using Coordinates of the Unit Circle
In this video, the teacher explains how to find the sine, cosine, and tangent of angles on the x and y-axes using coordinates of a unit circle. They also discuss quadrantal angles and the concept of undefined trig ratios.
Brian McLogan
Converting radians to degrees help me on math - How to pass pre-calculus
👉 Learn how to convert angles from radians to degrees. Recall that pi radians is equivalent to 180 degrees. Thus, when given an angle in radians, to convert the angle to degrees we multiply the given angle radians by the ratio 180/pi.
Brian McLogan
Find the central angle given the arc length and radius
👉 Learn how to solve problems with arc lengths. You will learn how to find the arc length of a sector, the angle of a sector, or the radius of a circle. An arc of a circle is the curve between a pair of points on the circumference of the...
Brian McLogan
Convert an angle from degrees minutes and seconds to radian form
👉 Learn how to convert angles from DMS forms to decimal forms. DMS means Degree, Minutes, and Seconds. Minutes is represented by a single apostrophe (') while seconds is represented with double apostrophe ("). 60 seconds = 1 minute and...
Flipping Physics
Introductory Centripetal Acceleration Problem - Cylindrical Space Station
A cylindrical space station with a radius of 115 m is rotating at 0.292 rad/s. A ladder goes from the rim to the center. What is the magnitude of the centripetal acceleration at (1) the top of the ladder, (2) the middle of the ladder,...
Brian McLogan
Determine the complement and supplement of an angle ex 3, 3
👉 Learn how to find the complement and the supplement of a given angle. Two angles are said to be complementary if they add up to 90 degrees (pi/2 in radians) and are said to be supplementary if they add up to 180 degrees (pi in...
Flipping Physics
Human Tangential Velocity Demonstration
Humans are best for demonstrating Tangential Velocity and understanding that it is not the same as angular velocity.
Brian McLogan
What are complementary and supplementary angles
👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...
Brian McLogan
How to find the estimate of an angle in radians - Help me on math
👉 Learn about angles in trigonometry. An angle is the figure formed by two rays sharing the same endpoint. The two rays are called the sides of the angle while the common endpoint of the two rays is called the vertex of the angle. Angle...
Brian McLogan
Graphing an Angle with Multiple Revolutions
👉 Learn how to sketch angles in terms of pi. An angle is the figure formed by two rays sharing the same endpoint. Angle is measured in radians or in degrees. One complete revolution about a point is equivalent to 2pi radians and 360...
Brian McLogan
Why do we get the coordinates of a unit circle - Free math help - Live lessons
👉 Learn about the points on the unit circle. A unit circle is a circle which radius is 1 and is centered at the origin in the cartesian coordinate system. To construct the unit circle we take note of the points where the unit circle...
Brian McLogan
Determining where a point is on the unit circle
👉 Learn how to find the point on the unit circle given the angle of the point. A unit circle is a circle whose radius is 1. Given an angle in radians, to find the coordinate of points on the unit circle made by the given angle with the...
Flipping Physics
Introduction to Circular Motion and Arc Length
Cartesian and polar coordinates are introduced and how to switch from one to the other is derived. The concept of angular displacement and arc length are demonstrated. Circumference is shown to be an arc length.
Flipping Physics
Introductory Uniformly Angularly Accelerated Motion Problem - A CD Player
What is the angular acceleration of a compact disc that turns through 3.25 revolutions while it uniformly slows to a stop in 2.27 seconds?
Flipping Physics
Introductory Arc Length Problem - Gum on a Bike Tire
How far does a piece of gum stuck to the outside of a 67 cm diameter wheel travel while the wheel rotates through 149°? A conversion from revolutions to degrees is performed.
Flipping Physics
Angular Accelerations of a Record Player
A record player is plugged in, uniformly accelerates to 45 revolutions per minute, and then is unplugged. The record player (a) takes 0.85 seconds to get up to speed, (b) spends 3.37 seconds at 45 rpms, and then (c) takes 2.32 seconds to...