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SCI 226 Homework #6
Fall 2019
Name:
Group #:
object’s mass?
4. The object depicted in the graph below has net force on it of 8.0N, what is the
20
16
12
Velocity (m/s)
8
4
0
0
1
4 5
2 3
Time (s)
5. If we added 4.0kg of mass to the object, what would change about the graph
above? Sketch a new graph depicting this new mass and still a force of 8.0N.
6. If the net force on the object suddenly becomes zero, what happens to the
object’s motion? How would that be depicted on a graph?
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Name:
SCI 226 Homework #6
Fall 2019
Group #:
tab
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Velocity - Time graph.
shift
30
Velocity
(in m/s)
20
B
control
A
С
10
10 20 30 40 50 60 70
Time (in Seconds)
7. The object depicted in the graph above is 5kg, what is the net force acting on
the object at point:
A:
B:
C:
8. How would you describe the motion of the object at point:
A: speeding up or slowing down or stopped
B: speeding up or slowing down or stopped
C: speeding up or slowing down or stopped
Since the object is always above the x-axis on this velocity vs time graph, the object
must be moving in the positive direction for the 70s depicted.
Do you see a pattern?
9. When the change in motion is (+) and the direction is (+), the object is:
10. When the change in motion is (-) and the direction is (+), the object is: