What is the definition of acceleration?
A change in velocity.
You walk 23 meters NORTH down the aisle. You realize you walked passed the peanut butter and you walk 11 meters SOUTH. What is the magnitude and direction of your displacement?
12 meters North
Speed
Scalar
What motion is described with this graph:
Constant Positive Velocity
What are the units for acceleration?
m/s^2
If the acceleration vector for a car is pointing north, and the velocity vector is pointing South, then what is happening to the car's speed?
slowing down
A boat is moving 9 m/s east while drifting north with the current at 6 m/s. What is the magnitude of the boat's resultant velocity?
10.8 m/s
Displacement
Vector
A
What is the acceleration for all falling objects?
-9.8 m/s^2
A bird has an initial speed of 10 m/s and speeds up to 60 m/s in 10 seconds. What is the acceleration of the bird?
Acceleration = 5m/s^2
A toy car drove a total displacement of 6 m South West. The car makes a 50 degree angle with the West direction. How far did the car travel south?
4.6 m S
Mass
Scalar
C
Who was the first scientist who was wrong all the time?
Aristotle
A ball rolling at 5 m/s starts rolling down a hill. It's speed if 8.9 m/s at the bottom. What is the average speed of the ball while rolling down the hill?
6.95 m/s
Two vectors have magnitudes of 8 meters and 15 meters. What is the smallest AND what is the largest resultant these vectors can make?
7 meters and 23 meters
Acceleration
vector
What is the acceleration?
10 m/s^2
What planet is closest to the Earth MOST of the time.
Mercury
A ball is dropped from the top of a 110 meter tall building. How fast is the ball going when it reaches the ground?
46.5 m/s
A 45 m vector points east. A 60 m vector points 70 degrees north from east. What is the magnitude of the resultant?
86.4 N
Surprise I LIED! What is the total displacement of a car that travels 15 m N, 30 m E, and and 20 m South?
30.4 m
How far did this thing travel from 0 to 4 seconds?
80 m
A race car finishes the first 800m lap in 36 seconds. It finishes the second lap in 32 seconds. What is the average velocity of the race car?
0 m/s