Question Help Two cars start from rest at a traffic light and accelerate for several minutes. The graph shows their velocity (in feet per second) as a function of time (in seconds). Car A is the one that initially has greater velocity. Use the graph to answer parts a. through d. below. Av 70- Car B 56- Car A 441 feet 42- 28- b. When is car A farthest ahead of car B? 14- 14 seconds 0- 3.5 10.5 14 17.5 21 24.5 c. Estimate the farthest that car A gets ahead of car B. For car A, use formulas from geometry. For car B, use n = 4 and the value of the function at the midpoint of each interval. The farthest ahead car A gets is approximately 200.6 feet ahead of car B. (Round to one decimal place as needed.) d. Give a rough estimate of when car B catches up with car A. Choose the best estimate below. O A. Between t= 10.5 and t= 14 O B. Between t= 14 andt=17.5 O C. Between t= 17.5 and t= 28 O D. Between t= 21 and t=24.5

Glencoe Physics: Principles and Problems, Student Edition
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Author:Paul W. Zitzewitz
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Chapter2: Representing Motion
Section: Chapter Questions
Problem 67A
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Two cars start from rest at a traffic light and accelerate for several
minutes. The graph shows their velocity (in feet per second) as a
function of time (in seconds). Car A is the one that initially has
greater velocity. Use the graph to answer parts a. through d. below.
70-
Car B
56-
Car A
441 feet
42-
28-
b. When is car A farthest ahead of car B?
14-
14 seconds
0-
3.5
7 10.5 14 17.5 21 24.5
c. Estimate the farthest that car A gets ahead of car B. For car A,
use formulas from geometry. For car B, use n = 4 and the value of
the function at the midpoint of each interval.
The farthest ahead car A gets is approximately 200.6 feet ahead
of car B.
(Round to one decimal place as needed.)
d. Give a rough estimate of when car B catches up with car A.
Choose the best estimate below.
O A. Between t= 10.5 and t= 14
B. Betweent=14 and t= 17.5
O C. Between t= 17.5 and t 28
O D. Between t= 21 andt= 24.5
Transcribed Image Text:Question Help Two cars start from rest at a traffic light and accelerate for several minutes. The graph shows their velocity (in feet per second) as a function of time (in seconds). Car A is the one that initially has greater velocity. Use the graph to answer parts a. through d. below. 70- Car B 56- Car A 441 feet 42- 28- b. When is car A farthest ahead of car B? 14- 14 seconds 0- 3.5 7 10.5 14 17.5 21 24.5 c. Estimate the farthest that car A gets ahead of car B. For car A, use formulas from geometry. For car B, use n = 4 and the value of the function at the midpoint of each interval. The farthest ahead car A gets is approximately 200.6 feet ahead of car B. (Round to one decimal place as needed.) d. Give a rough estimate of when car B catches up with car A. Choose the best estimate below. O A. Between t= 10.5 and t= 14 B. Betweent=14 and t= 17.5 O C. Between t= 17.5 and t 28 O D. Between t= 21 andt= 24.5
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