1. Over which interval is the velocity greatest?
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2. Over which interval(s) is the velocity zero?
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4. What is the average velocity in m/s from A to B?
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5. The velocity of an object goes from 4 m/s to 12 m/s in 4s. What is its acceleration?
without a diagram...
a. if you have a distance vs time graph, the greatest slope is highest velocity.
b. avg velocity= distance from A to B divided by time.
c. acceleration=changeinvelociy=8/4 m/s^2
Sorry about the lack of graph, I tried to put it here. but it wouldn't let me :(
For 1, on the graph, the highest point is c:d and it's just a starit line, does that mean the velocity is the greatest?
Please bear with me on this...
It depends on what is graphed.
Position vs time?
Velociy vs time?
If position vs time, then the slope of any line segment is =velocity.
If velocity vs time, then the highest point is highest velocity.
It's distance and time...
1. To determine the interval over which the velocity is greatest, we need to analyze the behavior of the velocity graph. The greatest velocity corresponds to the steepest slope of the graph.
To find this interval, we need more specific information, such as a graph of velocity over time or a more detailed description of the situation. Once we have that information, we can identify the interval where the slope of the velocity graph is the highest.
Please provide additional details or images to answer this question accurately.
2. To determine the interval(s) where the velocity is zero, we need to look for points on the graph where the velocity value is exactly zero. These points correspond to instances where the object is momentarily at rest or changes direction.
Again, without a specific graph or more detailed information, it's challenging to determine the exact interval(s) where the velocity is zero.
Please provide more context or specific information to answer this question.
4. To find the average velocity from point A to point B, we need the distance between A and B and the time it takes to travel that distance. Average velocity is calculated by dividing the displacement (change in position) by the time taken.
Given that you only provided point names ("A" and "B"), we require the corresponding positions or distances associated with those points in order to calculate the average velocity. Once we have the specific positions or distances, we can compute the average velocity.
Please provide the necessary information to calculate the average velocity accurately.
5. Acceleration is the rate at which an object changes its velocity. It is calculated by dividing the change in velocity by the time it takes for that change to occur.
In this case, you provided the initial velocity (4 m/s), the final velocity (12 m/s), and the time it took for the change in velocity (4 seconds).
By using the formula:
Acceleration = (final velocity - initial velocity) / time
We can plug in the given values to find the acceleration:
Acceleration = (12 m/s - 4 m/s) / 4s
= 8 m/s / 4s
= 2 m/s^2
Therefore, the acceleration of the object is 2 m/s^2.