Accelerated acceleration
The formula for acceleration
a= (Vf - Vi)/t
When an object changes its position
Motion
The slope on a distance over time graph tells you this:
Speed
A car traveled 60 miles in 1 Hour
60 mi/hr
The formula for speed
Speed equals distance divided by time
When an object is speeding up what kind of acceleration is it achieving?
Positive acceleration
Average Speed
The slope on a velocity over time graph tells you this:
Acceleration
a runner ran 2 miles in 10 minutes
0.2 mi/min
3 m/s north is an example of
Velocity
When an object is slowing down what kind of acceleration is it achieving?
Negative acceleration
Velocity
What is the slope of an object not moving on a distance over time graph?
it took door dash 0.75 hours to pick raising canes 12 miles to your house: how fast was that?
16 mi/hr
The speed your read on a speedometer is called this
Instantaneous speed
DAILY DOUBLE:
A student walks into class going 2.5 ft/s and sits down within 10 seconds. Find the acceleration
a=-0.25 ft/s2
An indicator that orients you, the place where you measure/record/witness an event from
Reference point
What is the slope of an object moving at a constant velocity on a velocity over time?
0
it took coach yano 95 seconds to pass out the test. He covered a distance of 35 feet
0.39 ft/second
an object changes its acceleration when it does these three things:
Speeds up, slows down, and changes direction
A car accelerates from a standstill to 60 mi/hr in 0.000972222 hr. find the acceleration
61,714.3 mi/hr2
Represented by Δ X, this shows how far an object and in what direction an object is to it's reference point
Displacement
What goes on the Y axis in a distance vs time graph? What about the X axis?
Y axis: distance
X axis: time
A tennis player serves a ball, the ball travels 68 feet to the other side of the court in 0.39 seconds. How fast was that?
174 ft/s
A runner runs 4 miles north then turns right and runs 6 miles east. Find the distance and displacement
d = 10 miles
x=7.21 miles NE