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# Applications of the Equations of Motion - Book Report/Review Example

Summary
The author concludes that the equations of motion can be used to calculate various kinematic variables such as speed, time and the distance traveled. However, the limitations with these equations of motion are that the acceleration needs to be constant and the line of motion should be straight…

## Extract of sample "Applications of the Equations of Motion"

Download file to see previous pages The objective of this experiment is to demonstrate the use of Newton’s equations of motion. We will use the equations of motion to calculate the unknown variables in the experiment and also verify the data with the help of these equations.
The start point and the end point for the car to move have been pre-defined. The distance between these points is the displacement of the car. For the purpose of the experiment, this distance has been kept at 50m.
Once acceleration is provided with the remote-controlled car; the time taken by the car to reach the finish point is recorded with the help of a stopwatch. The stopwatch was started as soon as the car crossed the start line and stopped when it reached the finish line.
For the purpose of the experiment, the force caused in the opposite direction by friction has been ignored. The experiment was conducted on a smooth marble surface to reduce the effect of friction as much as possible.
However, this acceleration we have calculated cannot be true as the acceleration was not constant. This can at best be said to be the average acceleration experienced by the car during the time it was in motion(Tmh, 2006).
Now we will try to calculate the distance using the third equation of motion. The distance calculated through the third equation should come out to be 50 m as we had taken 50 m as the distance of the movement of the car and the distance is known to us.
Thus the distance comes out to be 49.85; although the actual distance was 50 m. There is an error of 0.15 m which comes if we apply the equations of motion in the case of non-uniform acceleration. Although the error is small we can say safely that the equations of motion are not valid in the case of non-uniform acceleration. ...Download file to see next pagesRead More
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