A plane begins its takeoff at 2:00 p.m. on a 2580-mile flight. After 5.8 hours, the plane arrives at its destination. Explain why there are at least two times during the flight when the speed of the plane is 100 miles per hour. STEP 1: Let s(t) be the position of the plane. Let t = 0 correspond to 2 p.m., and fill in the following values. s(0) = = 2580 STEP 2: The Mean Value Theorem says that there exists a time to, < to < , such that the following is true. (Round your answer to two decimal places.) 2580 - S (to) = v(to) = -0 STEP 3: Now v(0) = , and v(5.8) = , and since v(to) = , we have 0 < 100 < v(to). Thus, we can apply the Intermediate Value Theorem to the velocity function on the intervals [0, to] and [to, ] to see that there are at least two times during the flight when the speed was 100 miles per hour. Need Help? Read It

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Author:Jay Abramson
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Chapter6: Exponential And Logarithmic Functions
Section: Chapter Questions
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A plane begins its takeoff at 2:00 p.m. on a 2580-mile flight. After 5.8 hours, the plane arrives at its destination. Explain why there are at least two times during the flight when the speed of the plane
is 100 miles per hour.
STEP 1: Let S(t) be the position of the plane. Let t = 0 correspond to 2 p.m., and fill in the following values.
S(0) =
= 2580
STEP 2: The Mean Value Theorem says that there exists a time to,
< to <
, such that the following is true. (Round your answer to two decimal places.)
2580 -
S (to) = v(to) =
-0
STEP 3: Now v(0) =
, and v(5.8) =
, and since v(to) =
, we have 0 < 100 < v(to). Thus, we can apply the Intermediate Value Theorem to the velocity
function on the intervals [0, to] and [to,
] to see that there are at least two times during the flight when the speed was 100 miles per hour.
Need Help?
Read It
Transcribed Image Text:A plane begins its takeoff at 2:00 p.m. on a 2580-mile flight. After 5.8 hours, the plane arrives at its destination. Explain why there are at least two times during the flight when the speed of the plane is 100 miles per hour. STEP 1: Let S(t) be the position of the plane. Let t = 0 correspond to 2 p.m., and fill in the following values. S(0) = = 2580 STEP 2: The Mean Value Theorem says that there exists a time to, < to < , such that the following is true. (Round your answer to two decimal places.) 2580 - S (to) = v(to) = -0 STEP 3: Now v(0) = , and v(5.8) = , and since v(to) = , we have 0 < 100 < v(to). Thus, we can apply the Intermediate Value Theorem to the velocity function on the intervals [0, to] and [to, ] to see that there are at least two times during the flight when the speed was 100 miles per hour. Need Help? Read It
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