Equations
The equation for velocity
velocity= displacement/ time
velocity= delta x / t
Velocity is this type of quantity
Vector
The unit of measurement for acceleration
m/s^2 (meters per seconds squared)
When a car speeds up, its _______ velocity is larger than its ________ velocity.
final; initial
The "x" in kinematic equations represents this word
position
The equation for speed
speed = distance / time or v= d / t
Direction
The average speed of a camel that runs 200km in 10 seconds. Convert your answer to m/s.
20,000 m/s
a= 2m/s^2
delta x= 3m
final velocity= 4m/s
initial velocity= ???
2m/s
The equation for "number of g's"
g's= acceleration (m/s^2) / 9.8 m/s^2
Constant
The type of acceleration when the slope on a line graph goes up.
positive acceleration
A car is traveling at 35.0m/s. It slows to a stop at a constant rate over 7.00 seconds. The distance the car travels during those 7.00 seconds before it stops.
245 m
An airplane accelerates down a runway at 3.20 m/s^2 for 32.8s until it finally lifts off the ground. Determine the distance traveled before takeoff.
1720m
The number of kinematic equations on the reference table. List one.
3 kinematic equations
A change in velocity
Acceleration
A car starts at the bottom of a hill with a velocity of 30m/s and 5 seconds later it is at the top of the hill going at a velocity of 15m/s. The acceleration of the car is...
-3 m/s^2
A friend's house is 3869m east from your house. If you drive straight east and arrive at your friend's house 154s later, what is the average velocity of your trip?
25.12 m/s east
A runner accelerates to 4.2 m/s^2 for 10 seconds before winning the race. The distance he/she ran...
210m
The kinematic equation you would use in order to determine initial velocity if you already knew the final velocity, acceleration, and time.
kinematic equation #2
What you calculate on a trip when you take total distance and divide it by total time
Average speed
The bicyclist started the race and halfway through the race, at 20 seconds, she had a velocity of 5m/s. Ten seconds later, her velocity was 10m/s. Her acceleration is...
.5 m/s^2
The number of hours it will take you to walk a distance (displacement) of 6755m north if your average velocity is 4.67m/s north?
.402 hours
A cheetah accelerates from 40km/h to 100km/h over a time of 4.5s. The number of g's of acceleration...
0.38 g's