Project A08 - The Mysterious Moving Particle


A particle is moving along a line so that at any time t, 0 £ t £ 6, it's velocity is given by v(t). The graph of v and a table of values are shown below.

t 0.0 1.0 2.0 3.0 4.0 5.0 6.0
v(t) -0.50 0.25 1.00 0.25 -0.50 0.25 1.00


  1. Find a 3rd degree polynomial p(t) that approximates v(t). Does it seem reasonable to approximate v(t) by a 3rd degree polynomial? Explain your reasoning.
  2. On the interval (0,2), the particle's position function s is a differentiable function of the particle's velocity v. Approximate ds/dv when t = 1. (Hint: This is a related rate problem.)
  3. Find open intervals on which p is increasing, decreasing, concave up, and concave down.
  4. Sketch a detailed graph of p on [0,6]. Compare your graph to that of v. How well does your polynomial approximate v?
  5. At what times does the particle stop? Use your polynomial p and Newton's Method to approximate these times.
  6. Using the actual values of v(t), evaluate a Riemann sum that approximates the particle's displacement over the interval [0,6].
  7. Use your polynomial p and the Fundamental Theorem of Calculus to approximate the particle's displacement over the interval [0,6].
  8. Use a definite integral to approximate the average velocity of the particle over the interval [0,6].
  9. Use a definite integral to approximate the average speed of the particle over the interval [0,6]. Set up the integral but use your calculator to evaluate it.
  10. Use the actual values of v(t) and the Trapezoid Rule to approximate the overall distance traveled by the particle over the interval [0,6].


File translated from TEX by TTH, version 1.98.
On 24 Sep 1999, 22:18.