a)
To find: The distance at which Team C’s runner passes Team B’s runner.
a)
Answer to Problem 30E
The distance at which Team C’s runner passes Team B’s runner is
Explanation of Solution
Given information: Team A’s runner running speed is
Team B’s runner running speed is
Team C’s runner running speed is
Calculation: From the graph,
The distance at which Team C’s runner passes Team B’s runner is
b)
To find: If the race was longer, Team C’s runner have passed Team A’s runner.
b)
Answer to Problem 30E
Yes, if the race was longer, Team C’s runner would have passed Team A’s runner.
Explanation of Solution
Given information: Team A’s runner running speed is
Team B’s runner running speed is
Team C’s runner running speed is
Calculation: From the graph,
Since Team A and C have different slopes but they intersect at
Hence, Team C’s runner would have passed Team A’s runner.
c)
To find: If the race was longer, Team B’s runner have passed Team A’s runner.
c)
Answer to Problem 30E
No, if the race was longer, Team B’s runner could not have passed Team A’s runner.
Explanation of Solution
Given information: Team A’s runner running speed is
Team B’s runner running speed is
Team C’s runner running speed is
Calculation: From the graph,
Since Team A and B have the same slopes but their intercepts are different. It means their slopes can’t intersect each other.
Hence, Team B’s runner cannot pass Team A’s runner.
Chapter 5 Solutions
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