Answer:
D.-4.798m/s
Explanation:
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Given values
Solve for V of the given expression
Firstly, recall the velocity-time equation
plug in known values to the equation
solve for final velocity
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What's forces are acting on the compass needle to cause it to point northeast
1 answer:
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Answer:
The slope of a position-time graph represents an object’s velocity.
Explanation:
In a position-time graph, the values on the x-axis represent the time, while the values on the y-axis represent the position of the object.
Velocity is defined as the ratio between the displacement of an object and the time taken:
However, we can see that this definition corresponds to the slope of the curve in a position-time graph. In fact:
, the displacement, corresponds to the difference in position, so the difference between the values on the y-axis:
, the time interval, corresponds to the difference in times, so the difference between the values on the x-axis:
So, the velocity is
which corresponds to the slope of the curve.