Motion Speed average and instantaneous Velocity Acceleration Speed
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Motion • Speed: average and instantaneous • Velocity • Acceleration
Speed Average and Instantaneous
Let’s Go to Myrtle Beach
Average Speed Average speed equals the distance traveled divided by the time of travel.
Instantaneous Speed
Scalars and Vectors Many physical quantities are used in physics, which are divided into scalars and vectors. A scalar quantity is one that can be described by a single number (including any units) giving its size or magnitude. Examples: Time interval, distance, speed, volume, mass, temperature, and density. A quantity that deals inherently with both magnitude and direction is called a vector quantity. Examples: Force, weight, velocity, and displacement.
Scalars and Vectors Scalar Vector Distance Displacement Speed Velocity Mass Weight
Vector Illustration Consider the following displacement vector of a car: The length of the vector arrow is proportional to the magnitude of the vector and the arrow represents the direction. In the text, bold face is used for vectors and italics is used for scalars. When hand written an arrow is placed above the symbol.
Velocity is a vector. Velocity = Speed + Direction
Acceleration Have you experienced acceleration?
Acceleration • Acceleration is the rate at which velocity changes.
Acceleration
Positive Acceleration
Negative Acceleration
Can a Car Be Accelerating When Its Speed Is Constant?
Acceleration of a Sports Car • http: //www. cars. com/go/crp/buying. Guides/Story. jsp? section=Spor ts&story=sports. Quickest&subject=stories&referer=&year=2005
Free Fall Acceleration due to gravity affects the velocity of an object as it falls.
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- Motion in a straight line formula
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- Final velocity initial velocity acceleration time
- Constant acceleration speed time graph
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- What is velocity
- Speed velocity and acceleration study guide answers
- What is the difference between speed and velocity
- Are speed and acceleration the same thing
- Speed, velocity and acceleration notes
- Instantaneous acceleration
- You are adding vectors of length 20 and 40 units.
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- Instantaneous velocity formula
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- Si unit of angular velocity