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Unit 1:Kinematics SPH3UR
Transcript of Unit 1:Kinematics SPH3UR
Speed and Velocity in one or two dimensions
Average speed = Distance traveled divided by the change in time
Average velocity = The change in position divided by the change in time
d = d + d
d = d - d
The study of motion
An arrow over a symbol ( ex. F) indicates a vector quantity which is a quantity that has a magnitude and direction.
Acceleration in one and two dimensions
Acceleration = the change in velocity divided by the time interval
The area under an acceleration time graph is the change in velocity.
The area under a velocity time graph is the displacement.
Acceleration due to gravity
In 2D problems, you can break vector quantities into thier x and y components. ( refer back to the 5 fundamental kinematics equations ) although they can be broken down into their components you must only use all x's or all y's when using an equation they cannot be mixed into one equation.
V x= x
where delta x is the distance horizontally (range).
Projectile motion is motion with a constant horizontal velocity combined with a constant vertical acceleration due to gravity( 9.8 m/s ) down.