HOW DO YOU SEE IT? Two long distance runners starting out side by side begin a 10,000-meter run. Their distances are given by s = f ( t ) and s = g ( t ) , where s is measured in thousands of meters and t is measured in minutes. (a) Which runner is running faster at t 1 ? (b) What conclusion can you make regarding their rates at t 2 ? (c) What conclusion can you make regarding their rates at t 3 ? (d) Which runner finishes the race first? Explain.
HOW DO YOU SEE IT? Two long distance runners starting out side by side begin a 10,000-meter run. Their distances are given by s = f ( t ) and s = g ( t ) , where s is measured in thousands of meters and t is measured in minutes. (a) Which runner is running faster at t 1 ? (b) What conclusion can you make regarding their rates at t 2 ? (c) What conclusion can you make regarding their rates at t 3 ? (d) Which runner finishes the race first? Explain.
Solution Summary: The author analyzes the runner's distance at t_1 if the two long distance runners start side by side and begin a 10,000 meter run.
HOW DO YOU SEE IT? Two long distance runners starting out side by side begin a 10,000-meter run. Their distances are given by
s
=
f
(
t
)
and
s
=
g
(
t
)
, where s is measured in thousands of meters and t is measured in minutes.
(a) Which runner is running faster at
t
1
?
(b) What conclusion can you make regarding their rates at
t
2
?
(c) What conclusion can you make regarding their rates at
t
3
?
(d) Which runner finishes the race first? Explain.
After a great deal of experimentation, two college senior physics majors determined that when a bottle of French champagne is shaken several times, held upright, and uncorked,
its cork travels according to the function below, where s is its height (in feet) above the ground t seconds after being released.
s(t)=-16t² + 30t+3
a. How high will it go?
b. How long is it in the air?
+6x²+135x+1) (0≤x≤10). a) Find the number of units
The total profit P(x) (in thousands of dollars) from a sale of x thousand units of a new product is given by P(x) = In (-x²+6x² + 135x+
that should be sold in order to maximize the total profit. b) What is the maximum profit?
The fox population in a certain region has an annual growth rate of 8 percent per year. It is estimated that the
population in the year 2000 was 22600.
(a) Find a function that models the population t years after 2000 (t = 0 for 2000).
Your answer is P(t)
=
(b) Use the function from part (a) to estimate the fox population in the year 2008.
Your answer is (the answer should be an integer)
Chapter 2 Solutions
Calculus: An Applied Approach (Providence College: MTH 109)
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