Card Set Information
Equation for Average Velocity
<V> = ΔX/Δt
Difference between speed and velocity
Velocity is a vector; it has a magnitude and direction
Speed is does not have a direction
Velocity is a measure of displacement/time
Speed is a measure of distance/time
Equation for acceleration
a = ΔV/Δt
*must be instantaneous velocity
*constant velocity means zero acceleration
Relationship between position, velocity, and time for one-dimentional motion
x = x
v = v
Define acceleration, velocity, and deceleration
: How quickly the velocity changes
: How quickly the position changes (net)
: Acceleration is in the opposite direction of velocity
If you throw a ball straight into the air...
How does acceleration apply?
How does velocity apply?
Acceleration is g at EVERY POINT in the throw, even at the top.
Velocity is equivalent at the same point (y) during the throw, but will have the opposite direction (opposite sign)
Velocity at the top will be 0