Roger runs a marathon. His friend Jeff rides behind him on a bicycle and clocks his speed every 15 minutes. Roger starts out strong, but after an hour and a half he is so exhausted that he has to stop. Jeff's data follow: Time since start (min) 15 30 45 60 75 90 Speed (mph) 14 12 9 9 6. 5 (a) Assuming that Roger's speed is never increasing, give upper and lower estimates for the distance Roger ran during the first half hour. Lower estimate = Upper estimate =

Roger runs a marathon. His friend Jeff rides behind him on a bicycle and clocks his speed every 15 minutes. Roger starts out strong, but after an hour and a half he is so exhausted that he has to stop. Jeff's data follow: Time since start (min) 15 30 45 60 75 90 Speed (mph) 14 12 9 9 6. 5 (a) Assuming that Roger's speed is never increasing, give upper and lower estimates for the distance Roger ran during the first half hour. Lower estimate = Upper estimate =

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Description: Roger runs a marathon. His friend Jeff rides behind him on a bicycle and clocks his speed every 15 minutes. Roger starts out strong,but after an hour and a half he is so exhausted that he has to stop. Jeff's data follow:Time since start (min)1530 45

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Roger runs a marathon. His friend Jeff rides behind him on a bicycle and clocks his speed every 15 minutes. Roger starts out strong,
but after an hour and a half he is so exhausted that he has to stop. Jeff's data follow:
Time since start (min)
15
30 45
60
75
90
Speed (mph)
14
12
9.
6.
(a) Assuming that Roger's speed is never increasing, give upper and lower estimates for the distance Roger ran during the first
half hour.
Lower estimate =
Upper estimate =

(b) Give upper and lower estimates for the distance Roger ran in total during the entire hour and a half.
Lower estimate =
Upper estimate =
eTextbook and Media
(c) How often would Jeff have needed to measure Roger's speed in order to find lower and upper estimates within 0.1 mile of
the actual distance he ran?
Round your answer to the nearest integer.
i
seconds

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