What is Slope-Intercept Form? m = slope b = y-intercept (x, y) = solution for equation y = mx + b.
Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope =...
-
Upload
linda-bradley -
Category
Documents
-
view
212 -
download
0
Transcript of Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope =...
![Page 1: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/1.jpg)
Acceleration
![Page 2: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/2.jpg)
AccelerationChange in
VELOCITY!!!
Need an equation
Magnitude
Direction
Review
x
t
xi
Slope = velocity
y=mx+b
x=vt+xi
What is slope?
Shows a Rate of Change
If slope is a rate of change, then what type of graph do I need to make an equation for acceleration?
or
![Page 3: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/3.jpg)
Acceleration v=at+vi
-vi -vi
v-vi=at(v-vi)/t = (at)/t
v
t
vi
Slope =
y = m x + b
v
accelaration
=at +vi
![Page 4: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/4.jpg)
Acceleration and UnitsUnits =
m/ss What do the units mean?
5 mi/hr :
For every hour of travel you move 5 miles.
12 (km/hr) / s :
For every second of travel your speed changes by 12 km/hr.Units always have a story to tell and that is why they are so important!
![Page 5: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/5.jpg)
Acceleration and Units
15 m/s2
So if my speed increases by constant increments of 15 m/s each second, how does that affect the
distance I travel?
v=0m/s
v=15m/s
v=30m/s v=45m/s v=60m/s
The distance between points is NOT! constant. We travel greater distances because of our increasing speed.
![Page 6: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/6.jpg)
Rank from least to greatest acceleration
![Page 7: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/7.jpg)
Practice
Jimmy, after digging himself out of a sealed well, saw Jane standing down the road. His racecar can accelerate at a rate of 7 m/s2. Once Jimmy gets to a speed of 52 m/s Jane
will not be able to escape. How much reaction time does Jane have?
a = (vf-vi)/t7 = (52-0)/t
t = 52/7t = 7.43 s
![Page 8: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/8.jpg)
Using tables to find acceleration
What is the position of the first object for the 8th second?
![Page 9: Acceleration Change in VELOCITY!!! Need an equation Magnitude Direction Review x t xixi Slope = velocity y=mx+b x=vt+x i What is slope? Shows a Rate of.](https://reader036.fdocuments.net/reader036/viewer/2022083009/5697bf871a28abf838c89088/html5/thumbnails/9.jpg)
+ -
Magnitude and Direction
# + , -
Displacement
Velocity
Acceleration
In front of start placeBehind of start place
Moving Forward Moving Backward
• If v+, then speeding up•If v-, then slowing down
•If v+, then slowing down•If v-, then speeding up
v+a- =Slowing down
v-a- =Speeding up
Vectors