Estimating Particle Position Using Taylor's Series

In summary, the problem involves estimating the position of a particle one second later using a series method and Taylor's series. The given information includes the particle's position, velocity, acceleration, and jerk at time t=1. The solution involves creating a Taylor series of degree 3 centered at t=1 and plugging in the values for the derivatives to approximate the particle's position at t=2.
  • #1
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Homework Statement


Copied verbatim from the worksheet:

At time t=1 a particle's position was 3(m), its velocity was -1(m/s), its acceleration was 3(m/s2), and it's jerk (rate of acceleration) was -2(m/s3). Use all the information given to estimate the particle's position one second later (at time t=2). Use a series method to solve this problem. (Hint: Think Taylor's series).

Homework Equations


Taylor's Series

The Attempt at a Solution


f(1)=3
f'(1)=-1
f''(1)=3
f'''(1)=-2

Since I'm given four derivatives at t=1, I figure I can make a Taylor series of degree 3 centered at t=1. Using the formula for Taylor series, I get:

[tex]\frac{3(t-1)^{0}}{0!}[/tex] - [tex]\frac{(t-1)^{1}}{1!}[/tex] + [tex]\frac{3(t-1)^{2}}{2!}[/tex] - [tex]\frac{2(t-1)^{3}}{3!}[/tex]. Provided that I understand everything properly, this should be an approximation for the particle's position. So, letting t=2, I should get (3)-(2)+([tex]\frac{3}{2}[/tex])-([tex]\frac{1}{3}[/tex])=([tex]\frac{13}{6}[/tex])
 
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  • #2
Looks ok to me. What makes you think there is something wrong? What's your question?
 
  • #3
It's for someone that I'm tutoring, and I have never done a question like that, so I'm trying to be extra careful. Thanks for your help!
 

1. What is Taylor's series and how is it used in estimating particle position?

Taylor's series is a mathematical method used to approximate a function using a series of derivatives at a specific point. In the context of estimating particle position, it is used to model the trajectory of a moving particle by approximating its position at different time points based on its velocity and acceleration.

2. How accurate is Taylor's series in estimating particle position?

The accuracy of Taylor's series in estimating particle position depends on the number of terms included in the series. The more terms included, the closer the approximation will be to the actual position. However, as the number of terms increases, the calculation becomes more complex.

3. Can Taylor's series be used for particles with varying velocity and acceleration?

Yes, Taylor's series can be used for particles with varying velocity and acceleration. However, the accuracy of the estimation will depend on how well the function can be approximated by the series. In cases where the function is not well-approximated by the series, other methods may be more suitable.

4. Are there any limitations to using Taylor's series for estimating particle position?

One limitation of using Taylor's series for estimating particle position is that it assumes that the function is smooth and can be represented by a polynomial. This may not always be the case for real-world particles with complex trajectories. Additionally, the accuracy of the estimation can be affected by errors in measuring the particle's velocity and acceleration.

5. Can Taylor's series be used for particles in three-dimensional space?

Yes, Taylor's series can be used for particles in three-dimensional space. However, the complexity of the calculation increases as the number of dimensions increase. In some cases, it may be more practical to use alternative methods for estimating particle position in three-dimensional space.

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