Definitions
Something with a magnitude and direction
What is a vector?
The equation for final velocity given initial velocity, acceleration, and time
What is vf = vi + at?
MATH
If a car initially moves at 10m/s and then comes to rest after 5 s, this is its final velocity
What is 0?
The value and unit of g, the acceleration due to gravity
What is 9.8 m/s2?
The displacement of an object divided by the elapsed time
What is average velocity?
The quantity represented by Δx
What is displacement?
MATH
The speed of an object that moved 15 meters in 2 seconds
What is 7.5 m/s?
The shape of the velocity vs time graph for a ball that you toss up, with up as the positive direction
What is a line with negative slope and positive y-intercept?
The average speed of an object is this divided by the elapsed time.
What is total distance travelled?
The equation for displacement given initial velocity, acceleration, and time
What is Δx=vit+0.5at2?
MATH
The acceleration of an object when its speed changed from 100 mph to 50 mph in 2 hours
What is -25 miles/hour2?
This is the maximum speed of an object, taking air resistance into account
What is terminal velocity?
The slope of a position vs time graph
What is velocity?
The equation for average velocity given initial and final velocity
What is avg v = 0.5*(vi+vf)?
MATH
If a person walks 10 m north and 20 m south, this is their displacement
What is -10 m (or 10 m south of original position)?
MATH
This is the velocity of a dropped object after 6 s of free fall
What is 58.8m?
The change in velocity divided by the elapsed time
What is average acceleration?
The variable that remains constant during all of our kinematics problems
What is acceleration?
MATH
The acceleration of a truck that started from rest and reached 9.2 m/s after moving 26.2m
What is 1.62m/s2?
MATH
This is how far an object drops after 5 s of free fall, starting from rest
What is 122.5m?