Slope=
Rise / Run
What is the equation we use to calculate speed?
Speed = Distance / Time
How do we reorder the acceleration equation to solve for final speed?
A car accelerates at a rate of 3.0 m/s2. If its original speed is 8.0 m/s, how many seconds will it take the car to reach a final speed of 25.0 m/s?
5.7 seconds
Don't forget! t = (v2 - v1) / a
You do not know an object's velocity (speed and direction) unless you have a ____________ _________.
What is reference point.
How would you graph a object moving 25km/h.
Graph Distance vs. Time
The standard SI unit of length is called a _________.
What is meter.
How many centimeters in a meter?
What is 100
While traveling along a highway, a driver slows from 24 m/s to 15 m/s in 12 seconds. What is the automobile’s acceleration?
a = (v2 - v1) / t
a = (15 - 24) / 12
a = -9 / 12
a = -0.75 m/s2
Convert 118 cm to meters
What is 1.18 meters
The distance the object moves per unit of time?
What is speed
What is the equation for acceleration?
A = v2 - v1 / time
A helicopter’s speed increases from 35 m/s to 60 m/s in 5 seconds. What is the acceleration of this helicopter?
a = (v2 - v1) / t
a = 60 - 35 / 5
a = 25 / 5
a = 5 m/s2
A family travels for an hour at 80 km/h westward and then for 3 hours at 40 km/h northwest. Find their average velocity during the trip.
What is 160 km in 3 hours, so their average velocity is about 53 km/h northwest.
As a roller coaster car starts down a slope, its speed is 4 m/s. But 3 seconds later, at the bottom, its speed is 22m/s. What is its average acceleration?
What is 6m/s2