A tortoise challenged a hare to a 100-meter race on a track. The tortoise negotiated a 50-meter head start with the hare. When the race started the hare was running at a constant speed of 2.8 meters per second and the tortoise was crawling at a speed of 0.5 meters per second. (They both maintained these speeds for the entire race.)   Our goal is to determine who won the race. Read the above problem statement again, then explain in writing on a sheet of paper how you will determine who won the race. Construct a drawing to represent the 100-meter length of the track. Then place the tortoise and hare's starting points on the track. Define the variable t to represent the number of seconds since the start of the race. Write an expression to represent the Tortoise's distance from the starting line in terms of t.    Represent the Hare's distance from the starting line in terms of t.      Write a formula to represent the distance, d (in meters), that the tortoise is ahead of the hare in terms of t, the amount of time since the start of the race. What is the value of t when the Hare catches up to the Tortoise?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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A tortoise challenged a hare to a 100-meter race on a track. The tortoise negotiated a 50-meter head start with the hare. When the race started the hare was running at a constant speed of 2.8 meters per second and the tortoise was crawling at a speed of 0.5 meters per second. (They both maintained these speeds for the entire race.)

 

Our goal is to determine who won the race.

  • Read the above problem statement again, then explain in writing on a sheet of paper how you will determine who won the race.
  • Construct a drawing to represent the 100-meter length of the track. Then place the tortoise and hare's starting points on the track.
  • Define the variable t to represent the number of seconds since the start of the race.
    1. Write an expression to represent the Tortoise's distance from the starting line in terms of t.   
  1. Represent the Hare's distance from the starting line in terms of t.     
  2. Write a formula to represent the distance, d (in meters), that the tortoise is ahead of the hare in terms of t, the amount of time since the start of the race.

  3. What is the value of t when the Hare catches up to the Tortoise? 

  4. How far has the hare run from the start of the race when he catches up to the tortoise?    

  5. On the graph below:

    1. construct a graph that represents the distance, dd, that the tortoise is ahead of the hare in terms of the number of seconds, tt, since the start of the race.
    2. Plot the point (10,27)(10,27) on your graph.
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