Use this graph of velocity vs. time for two objects to answer the question.
A velocity versus time graph shows two lines sloping upward from the origin. The line with the higher slope is labeled, C, and the line with smaller slope is labeled, D.
Which statement makes an accurate comparison of the motions for objects C and D?
(1 point)
Responses
Object D has an acceleration that is greater than the acceleration for C.
Object D has an acceleration that is greater than the acceleration for C.
Object C has an acceleration that is greater than the acceleration for D.
Object C has an acceleration that is greater than the acceleration for D.
Objects C and D have different velocities but the same acceleration.
Objects C and D have different velocities but the same acceleration.
Objects C and D have different accelerations but the same velocity throughout the motion
Object C has an acceleration that is greater than the acceleration for D.
Use the graph of velocity vs. time for an object to answer the question.
An illustration shows the velocity versus time graph. The vertical axis of the graph is labeled negative at the bottom and positive at the top. A line parallel to the horizontal axis from a point on the vertical axis near the top is labeled, A. The line then slopes downward passing through the horizontal axis at point C. The part of above C is labeled B and the part below C is labeled D. The line then becomes parallel the horizontal axis. This part of the graph is labeled, E.
During which of the labeled time segments is the object moving forward but slowing down?
(1 point)
Responses
C
C
D
D
A
A
B
C
Use the equation for motion to answer the question.
x=x0+v0t+12at2
An object has a starting position of 2 m, a starting velocity of 15 m/s, and is moving at a constant speed. Which option shows the final position of the object after 1 s?
(1 point)
Responses
17 m
17 m
30 m
30 m
32 m
32 m
60 m
To find the final position of the object after 1 second, we can substitute the given values into the equation:
x = x0 + v0t + 1/2at^2
x = 2 + 15(1) + 1/2(0)(1)^2
x = 2 + 15 + 0
x = 17
Therefore, the final position of the object after 1 second is 17 m.
The graph of an object's position over time is a horizontal line and y is not equal to 0. What must be true about the object's motion?(1 point)
Responses
The acceleration is constant and non-zero.
The acceleration is constant and non-zero.
The velocity is zero.
The velocity is zero.
The velocity is constant and non-zero.
The velocity is constant and non-zero.
The acceleration is negative.
The velocity is zero.
A object travels at constant negative acceleration. What does the graph of the object's velocity as a function of time look like?(1 point)
Responses
a straight line with positive slope
a straight line with positive slope
a curved line increasing from left to right
a curved line increasing from left to right
a straight line with negative slope
a straight line with negative slope
a curved line decreasing from left to right