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A student drives from Atlanta to Charlotte (250 miles) with the cruise control set to 65mi/hr. On the trip back home, they decide to test the boundries of the law, and
drive back with the cruise control set to 85 mi/hr.
Sketch a position vs time graph on mini whiteboard.
Thursday, August 26, 2010
70 1 2 3 4 5 6
250
0
50
100
150
200
Time (h)
Posi
tion
(m
i)
Thursday, August 26, 2010
A student drives from Atlanta to Charlotte (250 miles) with the cruise control set to 65mi/hr. On the trip back home, they decide to test the boundries of the law, and
drive back with the cruise control set to 85 mi/hr.
Sketch a velocity vs time graph for the same situation.
Thursday, August 26, 2010
70 1 2 3 4 5 6
100
-100
-80
-60
-40
-20
0
20
40
60
80
Time
Vel
ocit
y (m
i/hr
)
Thursday, August 26, 2010
Calculate the average velocity for the trip.
Thursday, August 26, 2010
Calculate the average speed for the trip.
Thursday, August 26, 2010
70 1 2 3 4 5 6
100
-100
-80
-60
-40
-20
0
20
40
60
80
Time
Vel
ocit
y (m
i/hr
)
Thursday, August 26, 2010
70 1 2 3 4 5 6
100
-100
-80
-60
-40
-20
0
20
40
60
80
Time
Vel
ocit
y (m
i/hr
)
∆x = Area = v̄∆t = 65mi
h· 250mi
65 mih
= 250mi
∆x = Area = v̄∆t = −85mi
h· 250mi
−85 mih
= −250mi
Thursday, August 26, 2010
70 1 2 3 4 5 6
250
0
50
100
150
200
Time (h)
Posi
tion
(m
i)
Thursday, August 26, 2010
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