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<title> Chapter 2 Help GO1DE </title>
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<h1>
chapter 2</h1>
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displacement
change in position to final position
velocity
change of displacement divided by time
speed is
change of distance/
speed
slope of velocity graph is
x/t
lines going up in a straight line have constant positive velocity
straight line has zero velocity
line going straight down negatively velocity
Instananeous velocity
velocity at an instant of time
like whats teh velocity at: t=3.0s?
this is usually compared with other graphs.
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<p>
Section 2.2
Acceleration
rate of
change in velocity
Aavg=vf-vi/tf-ti
example 2b on
pg 49
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acceleration has direction negative positive like east west north or going fast or slow
Table of velocity and acceleration
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<table border ="1">
<tr>
<td> Vi </td>
<td> A </td>
<td> Motion </td>
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<tr>
<td> + </td>
<td> + </td>
<td> speeding up </td>
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</table>
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<h1>
Get the picture?</h1>
- and -
speed up
+ - slow
0 0 resting
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Motion with constant acceleration
as a ball falls from the ceiling its displacement changes as well as velocity. figure 2-11 pg.51
