What to Do
1.
|
Time (s)
|
0
|
20
|
40
|
60
|
80
|
100
|
|
Velocity (m/s [forward])
|
11
|
16
|
18
|
18
|
14
|
11
|
2. (a) (+ 16 m/s) - (+ 11
m/s) = + 5 m/s
(b) (+ 18 m/s) – (+ 16 m/s) = + 2 m/s
(c) (- 18 m/s) – (+ 18 m/s) = 0 m/s
(d) (- 14 m/s) – (+ 18 m/s) = - 32 m/s
(e) (- 11 m/s) – (+ 14 m/s) = - 25 m/s
What Did You Find Out?
1. 0 s to 40s it was speeding
up since it had a positive acceleration.
2. 60 s to 100s it was
slowing down, because it had a negative acceleration.
3. 40 to 60s the velocity was
zero, because each time intervals had the same velocity.
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